h8300.c (get_shift_alg): Use a struct shift_info to return the result.
2001-01-09 Kazu Hirata <kazu@hxi.com> * config/h8300/h8300.c (get_shift_alg): Use a struct shift_info to return the result. From-SVN: r38850
This commit is contained in:
Kazu Hirata
Kazu Hirata
parent
4971426b43
commit
35fb3d1ff3
2 changed files with 187 additions and 167 deletions
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@ -1,3 +1,8 @@
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2001-01-09 Kazu Hirata <kazu@hxi.com>
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* config/h8300/h8300.c (get_shift_alg): Use a struct shift_info to
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return the result.
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2001-01-09 Alan Lehotsky <lehotsky@tiac.net>
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* reload.c (find_reloads_address): Check for eliminable registers
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@ -1969,10 +1969,32 @@ static const char *const rotate_two[3][3] =
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}
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};
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struct shift_info {
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/* Shift algorithm. */
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enum shift_alg alg;
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/* The number of bits to be shifted by shift1 and shift2. Valid
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when ALG is SHIFT_SPECIAL. */
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unsigned int remainder;
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/* Special insn for a shift. Valid when ALG is SHIFT_SPECIAL. */
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const char *special;
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/* Insn for a one-bit shift. Valid when ALG is either SHIFT_INLINE
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or SHIFT_SPECIAL, and REMAINDER is non-zero. */
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const char *shift1;
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/* Insn for a two-bit shift. Valid when ALG is either SHIFT_INLINE
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or SHIFT_SPECIAL, and REMAINDER is non-zero. */
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const char *shift2;
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/* Valid CC flags. */
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int cc_valid_p;
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};
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static enum shift_alg get_shift_alg PARAMS ((enum shift_type,
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enum shift_mode, int,
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const char **, const char **,
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int *));
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struct shift_info *));
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/* Given CPU, MODE, SHIFT_TYPE, and shift count COUNT, determine the best
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algorithm for doing the shift. The assembler code is stored in ASSEMBLER.
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@ -1988,23 +2010,20 @@ static enum shift_alg get_shift_alg PARAMS ((enum shift_type,
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1,2,3,4 will be inlined (1,2 for SI). */
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static enum shift_alg
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get_shift_alg (shift_type, shift_mode, count, assembler_p,
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assembler2_p, cc_valid_p)
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get_shift_alg (shift_type, shift_mode, count, info)
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enum shift_type shift_type;
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enum shift_mode shift_mode;
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int count;
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const char **assembler_p;
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const char **assembler2_p;
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int *cc_valid_p;
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struct shift_info *info;
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{
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/* Assume either SHIFT_LOOP or SHIFT_INLINE.
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It is up to the caller to know that looping clobbers cc. */
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*assembler_p = shift_one[cpu_type][shift_type][shift_mode].assembler;
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info->shift1 = shift_one[cpu_type][shift_type][shift_mode].assembler;
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if (TARGET_H8300S)
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*assembler2_p = shift_two[shift_type][shift_mode].assembler;
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info->shift2 = shift_two[shift_type][shift_mode].assembler;
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else
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*assembler2_p = NULL;
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*cc_valid_p = shift_one[cpu_type][shift_type][shift_mode].cc_valid;
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info->shift2 = NULL;
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info->cc_valid_p = shift_one[cpu_type][shift_type][shift_mode].cc_valid;
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/* Now look for cases we want to optimize. */
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@ -2024,8 +2043,8 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
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through the entire value. */
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if (shift_type == SHIFT_ASHIFTRT && count == 7)
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{
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*assembler_p = "shll\t%X0\n\tsubx\t%X0,%X0";
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*cc_valid_p = 0;
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info->special = "shll\t%X0\n\tsubx\t%X0,%X0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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}
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@ -2034,10 +2053,10 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
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return SHIFT_LOOP;
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/* Other shifts by 5, 6, or 7 bits use SHIFT_ROT_AND. */
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*assembler_p = rotate_one[cpu_type][shift_type][shift_mode];
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info->shift1 = rotate_one[cpu_type][shift_type][shift_mode];
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if (TARGET_H8300S)
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*assembler2_p = rotate_two[shift_type][shift_mode];
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*cc_valid_p = 0;
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info->shift2 = rotate_two[shift_type][shift_mode];
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info->cc_valid_p = 0;
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return SHIFT_ROT_AND;
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}
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@ -2050,36 +2069,36 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
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{
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if (shift_type == SHIFT_ASHIFT && TARGET_H8300)
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{
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*assembler_p = "shar.b\t%t0\n\tmov.b\t%s0,%t0\n\trotxr.b\t%t0\n\trotr.b\t%s0\n\tand.b\t#0x80,%s0";
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*cc_valid_p = 0;
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info->special = "shar.b\t%t0\n\tmov.b\t%s0,%t0\n\trotxr.b\t%t0\n\trotr.b\t%s0\n\tand.b\t#0x80,%s0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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}
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if (shift_type == SHIFT_ASHIFT && TARGET_H8300H)
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{
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*assembler_p = "shar.b\t%t0\n\tmov.b\t%s0,%t0\n\trotxr.w\t%T0\n\tand.b\t#0x80,%s0";
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*cc_valid_p = 0;
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info->special = "shar.b\t%t0\n\tmov.b\t%s0,%t0\n\trotxr.w\t%T0\n\tand.b\t#0x80,%s0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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}
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if (shift_type == SHIFT_LSHIFTRT && TARGET_H8300)
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{
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*assembler_p = "shal.b\t%s0\n\tmov.b\t%t0,%s0\n\trotxl.b\t%s0\n\trotl.b\t%t0\n\tand.b\t#0x01,%t0";
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*cc_valid_p = 0;
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info->special = "shal.b\t%s0\n\tmov.b\t%t0,%s0\n\trotxl.b\t%s0\n\trotl.b\t%t0\n\tand.b\t#0x01,%t0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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}
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if (shift_type == SHIFT_LSHIFTRT && TARGET_H8300H)
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{
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*assembler_p = "shal.b\t%s0\n\tmov.b\t%t0,%s0\n\trotxl.w\t%T0\n\tand.b\t#0x01,%t0";
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*cc_valid_p = 0;
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info->special = "shal.b\t%s0\n\tmov.b\t%t0,%s0\n\trotxl.w\t%T0\n\tand.b\t#0x01,%t0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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}
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if (shift_type == SHIFT_ASHIFTRT)
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{
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*assembler_p = "shal.b\t%s0\n\tmov.b\t%t0,%s0\n\trotxl.b\t%s0\n\tsubx\t%t0,%t0";
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*cc_valid_p = 0;
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info->special = "shal.b\t%s0\n\tmov.b\t%t0,%s0\n\trotxl.b\t%s0\n\tsubx\t%t0,%t0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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}
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}
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@ -2088,19 +2107,19 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
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switch (shift_type)
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{
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case SHIFT_ASHIFT:
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*assembler_p = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0";
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*cc_valid_p = 0;
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info->special = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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case SHIFT_LSHIFTRT:
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*assembler_p = "mov.b\t%t0,%s0\n\tsub.b\t%t0,%t0";
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*cc_valid_p = 0;
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info->special = "mov.b\t%t0,%s0\n\tsub.b\t%t0,%t0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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case SHIFT_ASHIFTRT:
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if (TARGET_H8300)
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*assembler_p = "mov.b\t%t0,%s0\n\tshll\t%t0\n\tsubx\t%t0,%t0";
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info->special = "mov.b\t%t0,%s0\n\tshll\t%t0\n\tsubx\t%t0,%t0";
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else
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*assembler_p = "mov.b\t%t0,%s0\n\texts.w\t%T0";
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*cc_valid_p = 0;
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info->special = "mov.b\t%t0,%s0\n\texts.w\t%T0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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}
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}
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@ -2109,19 +2128,19 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
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switch (shift_type)
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{
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case SHIFT_ASHIFT:
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*assembler_p = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tshal.b\t%t0";
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*cc_valid_p = 0;
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info->special = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tshal.b\t%t0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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case SHIFT_LSHIFTRT:
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*assembler_p = "mov.b\t%t0,%s0\n\tsub.b\t%t0,%t0\n\tshlr.b\t%s0";
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*cc_valid_p = 0;
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info->special = "mov.b\t%t0,%s0\n\tsub.b\t%t0,%t0\n\tshlr.b\t%s0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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case SHIFT_ASHIFTRT:
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if (TARGET_H8300)
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*assembler_p = "mov.b\t%t0,%s0\n\tbld\t#7,%s0\n\tsubx\t%t0,%t0\n\tshar.b\t%s0";
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info->special = "mov.b\t%t0,%s0\n\tbld\t#7,%s0\n\tsubx\t%t0,%t0\n\tshar.b\t%s0";
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else
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*assembler_p = "mov.b\t%t0,%s0\n\texts.w\t%T0\n\tshar.b\t%s0";
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*cc_valid_p = 0;
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info->special = "mov.b\t%t0,%s0\n\texts.w\t%T0\n\tshar.b\t%s0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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}
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}
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@ -2131,26 +2150,26 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
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{
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case SHIFT_ASHIFT:
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if (TARGET_H8300S)
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*assembler_p = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tshal.b\t#2,%t0";
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info->special = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tshal.b\t#2,%t0";
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else
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*assembler_p = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tshal.b\t%t0\n\tshal.b\t%t0";
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*cc_valid_p = 0;
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info->special = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tshal.b\t%t0\n\tshal.b\t%t0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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case SHIFT_LSHIFTRT:
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if (TARGET_H8300S)
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*assembler_p = "mov.b\t%t0,%s0\n\tsub.b\t%t0,%t0\n\tshlr.b\t#2,%s0";
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info->special = "mov.b\t%t0,%s0\n\tsub.b\t%t0,%t0\n\tshlr.b\t#2,%s0";
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else
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*assembler_p = "mov.b\t%t0,%s0\n\tsub.b\t%t0,%t0\n\tshlr.b\t%s0\n\tshlr.b\t%s0";
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*cc_valid_p = 0;
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info->special = "mov.b\t%t0,%s0\n\tsub.b\t%t0,%t0\n\tshlr.b\t%s0\n\tshlr.b\t%s0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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case SHIFT_ASHIFTRT:
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if (TARGET_H8300)
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*assembler_p = "mov.b\t%t0,%s0\n\tbld\t#7,%s0\n\tsubx\t%t0,%t0\n\tshar.b\t%s0\n\tshar.b\t%s0";
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info->special = "mov.b\t%t0,%s0\n\tbld\t#7,%s0\n\tsubx\t%t0,%t0\n\tshar.b\t%s0\n\tshar.b\t%s0";
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else if (TARGET_H8300H)
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*assembler_p = "mov.b\t%t0,%s0\n\texts.w\t%T0\n\tshar.b\t%s0\n\tshar.b\t%s0";
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info->special = "mov.b\t%t0,%s0\n\texts.w\t%T0\n\tshar.b\t%s0\n\tshar.b\t%s0";
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else if (TARGET_H8300S)
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*assembler_p = "mov.b\t%t0,%s0\n\texts.w\t%T0\n\tshar.b\t#2,%s0";
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*cc_valid_p = 0;
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info->special = "mov.b\t%t0,%s0\n\texts.w\t%T0\n\tshar.b\t#2,%s0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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}
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}
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@ -2160,26 +2179,26 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
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{
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case SHIFT_ASHIFT:
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if (TARGET_H8300S)
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*assembler_p = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tshal.b\t#2,%t0\n\tshal.b\t%t0";
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info->special = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tshal.b\t#2,%t0\n\tshal.b\t%t0";
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else
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*assembler_p = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tshal.b\t%t0\n\tshal.b\t%t0\n\tshal.b\t%t0";
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*cc_valid_p = 0;
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info->special = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tshal.b\t%t0\n\tshal.b\t%t0\n\tshal.b\t%t0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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case SHIFT_LSHIFTRT:
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if (TARGET_H8300S)
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*assembler_p = "mov.b\t%t0,%s0\n\tsub.b\t%t0,%t0\n\tshlr.b\t#2,%s0\n\tshlr.b\t%s0";
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info->special = "mov.b\t%t0,%s0\n\tsub.b\t%t0,%t0\n\tshlr.b\t#2,%s0\n\tshlr.b\t%s0";
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else
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*assembler_p = "mov.b\t%t0,%s0\n\tsub.b\t%t0,%t0\n\tshlr.b\t%s0\n\tshlr.b\t%s0\n\tshlr.b\t%s0";
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*cc_valid_p = 0;
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info->special = "mov.b\t%t0,%s0\n\tsub.b\t%t0,%t0\n\tshlr.b\t%s0\n\tshlr.b\t%s0\n\tshlr.b\t%s0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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case SHIFT_ASHIFTRT:
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if (TARGET_H8300)
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*assembler_p = "mov.b\t%t0,%s0\n\tbld\t#7,%s0\n\tsubx\t%t0,%t0\n\tshar.b\t%s0\n\tshar.b\t%s0\n\tshar.b\t%s0";
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info->special = "mov.b\t%t0,%s0\n\tbld\t#7,%s0\n\tsubx\t%t0,%t0\n\tshar.b\t%s0\n\tshar.b\t%s0\n\tshar.b\t%s0";
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else if (TARGET_H8300H)
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*assembler_p = "mov.b\t%t0,%s0\n\texts.w\t%T0\n\tshar.b\t%s0\n\tshar.b\t%s0\n\tshar.b\t%s0";
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info->special = "mov.b\t%t0,%s0\n\texts.w\t%T0\n\tshar.b\t%s0\n\tshar.b\t%s0\n\tshar.b\t%s0";
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else if (TARGET_H8300S)
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*assembler_p = "mov.b\t%t0,%s0\n\texts.w\t%T0\n\tshar.b\t#2,%s0\n\tshar.b\t%s0";
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*cc_valid_p = 0;
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info->special = "mov.b\t%t0,%s0\n\texts.w\t%T0\n\tshar.b\t#2,%s0\n\tshar.b\t%s0";
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info->cc_valid_p = 0;
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return SHIFT_SPECIAL;
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}
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}
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@ -2189,26 +2208,26 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
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{
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case SHIFT_ASHIFT:
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if (TARGET_H8300S)
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*assembler_p = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tshal.b\t#2,%t0\n\tshal.b\t#2,%t0";
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info->special = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tshal.b\t#2,%t0\n\tshal.b\t#2,%t0";
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else
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*assembler_p = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tshal.b\t%t0\n\tshal.b\t%t0\n\tshal.b\t%t0\n\tshal.b\t%t0";
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*cc_valid_p = 0;
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info->special = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tshal.b\t%t0\n\tshal.b\t%t0\n\tshal.b\t%t0\n\tshal.b\t%t0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_LSHIFTRT:
|
||||
if (TARGET_H8300S)
|
||||
*assembler_p = "mov.b\t%t0,%s0\n\tsub.b\t%t0,%t0\n\tshlr.b\t#2,%s0\n\tshlr.b\t#2,%s0";
|
||||
info->special = "mov.b\t%t0,%s0\n\tsub.b\t%t0,%t0\n\tshlr.b\t#2,%s0\n\tshlr.b\t#2,%s0";
|
||||
else
|
||||
*assembler_p = "mov.b\t%t0,%s0\n\tsub.b\t%t0,%t0\n\tshlr.b\t%s0\n\tshlr.b\t%s0\n\tshlr.b\t%s0\n\tshlr.b\t%s0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.b\t%t0,%s0\n\tsub.b\t%t0,%t0\n\tshlr.b\t%s0\n\tshlr.b\t%s0\n\tshlr.b\t%s0\n\tshlr.b\t%s0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_ASHIFTRT:
|
||||
if (TARGET_H8300)
|
||||
*assembler_p = "mov.b\t%t0,%s0\n\tbld\t#7,%s0\n\tsubx\t%t0,%t0\n\tshar.b\t%s0\n\tshar.b\t%s0\n\tshar.b\t%s0\n\tshar.b\t%s0";
|
||||
info->special = "mov.b\t%t0,%s0\n\tbld\t#7,%s0\n\tsubx\t%t0,%t0\n\tshar.b\t%s0\n\tshar.b\t%s0\n\tshar.b\t%s0\n\tshar.b\t%s0";
|
||||
else if (TARGET_H8300H)
|
||||
*assembler_p = "mov.b\t%t0,%s0\n\texts.w\t%T0\n\tshar.b\t%s0\n\tshar.b\t%s0\n\tshar.b\t%s0\n\tshar.b\t%s0";
|
||||
info->special = "mov.b\t%t0,%s0\n\texts.w\t%T0\n\tshar.b\t%s0\n\tshar.b\t%s0\n\tshar.b\t%s0\n\tshar.b\t%s0";
|
||||
else if (TARGET_H8300S)
|
||||
*assembler_p = "mov.b\t%t0,%s0\n\texts.w\t%T0\n\tshar.b\t#2,%s0\n\tshar.b\t#2,%s0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.b\t%t0,%s0\n\texts.w\t%T0\n\tshar.b\t#2,%s0\n\tshar.b\t#2,%s0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
}
|
||||
}
|
||||
|
|
@ -2217,18 +2236,18 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
|
|||
{
|
||||
if (count == 15 && shift_type == SHIFT_ASHIFTRT)
|
||||
{
|
||||
*assembler_p = "shll\t%t0,%t0\n\tsubx\t%t0,%t0\n\tmov.b\t%t0,%s0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "shll\t%t0,%t0\n\tsubx\t%t0,%t0\n\tmov.b\t%t0,%s0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
}
|
||||
else if (shift_type != SHIFT_ASHIFTRT)
|
||||
{
|
||||
*assembler_p = rotate_one[cpu_type][shift_type][shift_mode];
|
||||
info->shift1 = rotate_one[cpu_type][shift_type][shift_mode];
|
||||
if (TARGET_H8300S)
|
||||
*assembler2_p = rotate_two[shift_type][shift_mode];
|
||||
info->shift2 = rotate_two[shift_type][shift_mode];
|
||||
else
|
||||
*assembler2_p = NULL;
|
||||
*cc_valid_p = 0;
|
||||
info->shift2 = NULL;
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_ROT_AND;
|
||||
}
|
||||
}
|
||||
|
|
@ -2244,16 +2263,16 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
|
|||
switch (shift_type)
|
||||
{
|
||||
case SHIFT_ASHIFT:
|
||||
*assembler_p = "mov.b\t%y0,%z0\n\tmov.b\t%x0,%y0\n\tmov.b\t%w0,%x0\n\tsub.b\t%w0,%w0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.b\t%y0,%z0\n\tmov.b\t%x0,%y0\n\tmov.b\t%w0,%x0\n\tsub.b\t%w0,%w0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_LSHIFTRT:
|
||||
*assembler_p = "mov.b\t%x0,%w0\n\tmov.b\t%y0,%x0\n\tmov.b\t%z0,%y0\n\tsub.b\t%z0,%z0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.b\t%x0,%w0\n\tmov.b\t%y0,%x0\n\tmov.b\t%z0,%y0\n\tsub.b\t%z0,%z0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_ASHIFTRT:
|
||||
*assembler_p = "mov.b\t%x0,%w0\n\tmov.b\t%y0,%x0\n\tmov.b\t%z0,%y0\n\tshll\t%z0\n\tsubx\t%z0,%z0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.b\t%x0,%w0\n\tmov.b\t%y0,%x0\n\tmov.b\t%z0,%y0\n\tshll\t%z0\n\tsubx\t%z0,%z0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
}
|
||||
}
|
||||
|
|
@ -2262,16 +2281,16 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
|
|||
switch (shift_type)
|
||||
{
|
||||
case SHIFT_ASHIFT:
|
||||
*assembler_p = "mov.w\t%e0,%f4\n\tmov.b\t%s4,%t4\n\tmov.b\t%t0,%s4\n\tmov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tmov.w\t%f4,%e0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%e0,%f4\n\tmov.b\t%s4,%t4\n\tmov.b\t%t0,%s4\n\tmov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tmov.w\t%f4,%e0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_LSHIFTRT:
|
||||
*assembler_p = "mov.w\t%e0,%f4\n\tmov.b\t%t0,%s0\n\tmov.b\t%s4,%t0\n\tmov.b\t%t4,%s4\n\textu.w\t%f4\n\tmov.w\t%f4,%e0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%e0,%f4\n\tmov.b\t%t0,%s0\n\tmov.b\t%s4,%t0\n\tmov.b\t%t4,%s4\n\textu.w\t%f4\n\tmov.w\t%f4,%e0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_ASHIFTRT:
|
||||
*assembler_p = "mov.w\t%e0,%f4\n\tmov.b\t%t0,%s0\n\tmov.b\t%s4,%t0\n\tmov.b\t%t4,%s4\n\texts.w\t%f4\n\tmov.w\t%f4,%e0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%e0,%f4\n\tmov.b\t%t0,%s0\n\tmov.b\t%s4,%t0\n\tmov.b\t%t4,%s4\n\texts.w\t%f4\n\tmov.w\t%f4,%e0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
}
|
||||
}
|
||||
|
|
@ -2280,19 +2299,19 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
|
|||
switch (shift_type)
|
||||
{
|
||||
case SHIFT_ASHIFT:
|
||||
*assembler_p = "mov.w\t%f0,%e0\n\tsub.w\t%f0,%f0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%f0,%e0\n\tsub.w\t%f0,%f0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_LSHIFTRT:
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\tsub.w\t%e0,%e0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%e0,%f0\n\tsub.w\t%e0,%e0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_ASHIFTRT:
|
||||
if (TARGET_H8300)
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\tshll\t%z0\n\tsubx\t%z0,%z0\n\tmov.b\t%z0,%y0";
|
||||
info->special = "mov.w\t%e0,%f0\n\tshll\t%z0\n\tsubx\t%z0,%z0\n\tmov.b\t%z0,%y0";
|
||||
else
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\texts.l\t%S0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%e0,%f0\n\texts.l\t%S0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
}
|
||||
}
|
||||
|
|
@ -2301,16 +2320,16 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
|
|||
switch (shift_type)
|
||||
{
|
||||
case SHIFT_ASHIFT:
|
||||
*assembler_p = "mov.w\t%f0,%e0\n\tsub.w\t%f0,%f0\n\tshll.l\t%S0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%f0,%e0\n\tsub.w\t%f0,%f0\n\tshll.l\t%S0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_LSHIFTRT:
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\tsub.w\t%e0,%e0\n\tshlr.l\t%S0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%e0,%f0\n\tsub.w\t%e0,%e0\n\tshlr.l\t%S0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_ASHIFTRT:
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\texts.l\t%S0\n\tshar.l\t%S0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%e0,%f0\n\texts.l\t%S0\n\tshar.l\t%S0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
}
|
||||
}
|
||||
|
|
@ -2320,24 +2339,24 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
|
|||
{
|
||||
case SHIFT_ASHIFT:
|
||||
if (TARGET_H8300S)
|
||||
*assembler_p = "mov.w\t%f0,%e0\n\tsub.w\t%f0,%f0\n\tshll.l\t#2,%S0";
|
||||
info->special = "mov.w\t%f0,%e0\n\tsub.w\t%f0,%f0\n\tshll.l\t#2,%S0";
|
||||
else
|
||||
*assembler_p = "mov.w\t%f0,%e0\n\tsub.w\t%f0,%f0\n\tshll.l\t%S0\n\tshll.l\t%S0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%f0,%e0\n\tsub.w\t%f0,%f0\n\tshll.l\t%S0\n\tshll.l\t%S0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_LSHIFTRT:
|
||||
if (TARGET_H8300S)
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\tsub.w\t%e0,%e0\n\tshlr.l\t#2,%S0";
|
||||
info->special = "mov.w\t%e0,%f0\n\tsub.w\t%e0,%e0\n\tshlr.l\t#2,%S0";
|
||||
else
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\tsub.w\t%e0,%e0\n\tshlr.l\t%S0\n\tshlr.l\t%S0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%e0,%f0\n\tsub.w\t%e0,%e0\n\tshlr.l\t%S0\n\tshlr.l\t%S0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_ASHIFTRT:
|
||||
if (TARGET_H8300S)
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\texts.l\t%S0\n\tshar.l\t#2,%S0";
|
||||
info->special = "mov.w\t%e0,%f0\n\texts.l\t%S0\n\tshar.l\t#2,%S0";
|
||||
else
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\texts.l\t%S0\n\tshar.l\t%S0\n\tshar.l\t%S0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%e0,%f0\n\texts.l\t%S0\n\tshar.l\t%S0\n\tshar.l\t%S0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
}
|
||||
}
|
||||
|
|
@ -2347,24 +2366,24 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
|
|||
{
|
||||
case SHIFT_ASHIFT:
|
||||
if (TARGET_H8300S)
|
||||
*assembler_p = "mov.w\t%f0,%e0\n\tsub.w\t%f0,%f0\n\tshll.l\t#2,%S0\n\tshll.l\t%S0";
|
||||
info->special = "mov.w\t%f0,%e0\n\tsub.w\t%f0,%f0\n\tshll.l\t#2,%S0\n\tshll.l\t%S0";
|
||||
else
|
||||
*assembler_p = "mov.w\t%f0,%e0\n\tsub.w\t%f0,%f0\n\tshll.l\t%S0\n\tshll.l\t%S0\n\tshll.l\t%S0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%f0,%e0\n\tsub.w\t%f0,%f0\n\tshll.l\t%S0\n\tshll.l\t%S0\n\tshll.l\t%S0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_LSHIFTRT:
|
||||
if (TARGET_H8300S)
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\tsub.w\t%e0,%e0\n\tshlr.l\t#2,%S0\n\tshlr.l\t%S0";
|
||||
info->special = "mov.w\t%e0,%f0\n\tsub.w\t%e0,%e0\n\tshlr.l\t#2,%S0\n\tshlr.l\t%S0";
|
||||
else
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\tsub.w\t%e0,%e0\n\tshlr.l\t%S0\n\tshlr.l\t%S0\n\tshlr.l\t%S0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%e0,%f0\n\tsub.w\t%e0,%e0\n\tshlr.l\t%S0\n\tshlr.l\t%S0\n\tshlr.l\t%S0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_ASHIFTRT:
|
||||
if (TARGET_H8300S)
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\texts.l\t%S0\n\tshar.l\t#2,%S0\n\tshar.l\t%S0";
|
||||
info->special = "mov.w\t%e0,%f0\n\texts.l\t%S0\n\tshar.l\t#2,%S0\n\tshar.l\t%S0";
|
||||
else
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\texts.l\t%S0\n\tshar.l\t%S0\n\tshar.l\t%S0\n\tshar.l\t%S0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%e0,%f0\n\texts.l\t%S0\n\tshar.l\t%S0\n\tshar.l\t%S0\n\tshar.l\t%S0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
}
|
||||
}
|
||||
|
|
@ -2373,16 +2392,16 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
|
|||
switch (shift_type)
|
||||
{
|
||||
case SHIFT_ASHIFT:
|
||||
*assembler_p = "mov.w\t%f0,%e0\n\tsub.w\t%f0,%f0\n\tshll.l\t#2,%S0\n\tshll.l\t#2,%S0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%f0,%e0\n\tsub.w\t%f0,%f0\n\tshll.l\t#2,%S0\n\tshll.l\t#2,%S0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_LSHIFTRT:
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\tsub.w\t%e0,%e0\n\tshlr.l\t#2,%S0\n\tshlr.l\t#2,%S0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%e0,%f0\n\tsub.w\t%e0,%e0\n\tshlr.l\t#2,%S0\n\tshlr.l\t#2,%S0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_ASHIFTRT:
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\texts.l\t%S0\n\tshar.l\t#2,%S0\n\tshar.l\t#2,%S0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%e0,%f0\n\texts.l\t%S0\n\tshar.l\t#2,%S0\n\tshar.l\t#2,%S0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
}
|
||||
}
|
||||
|
|
@ -2391,16 +2410,16 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
|
|||
switch (shift_type)
|
||||
{
|
||||
case SHIFT_ASHIFT:
|
||||
*assembler_p = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tmov.w\t%f0,%e0\n\tsub.w\t%f0,%f0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.b\t%s0,%t0\n\tsub.b\t%s0,%s0\n\tmov.w\t%f0,%e0\n\tsub.w\t%f0,%f0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_LSHIFTRT:
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\tmov.b\t%t0,%s0\n\textu.w\t%f0\n\textu.l\t%S0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%e0,%f0\n\tmov.b\t%t0,%s0\n\textu.w\t%f0\n\textu.l\t%S0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
case SHIFT_ASHIFTRT:
|
||||
*assembler_p = "mov.w\t%e0,%f0\n\tmov.b\t%t0,%s0\n\texts.w\t%f0\n\texts.l\t%S0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "mov.w\t%e0,%f0\n\tmov.b\t%t0,%s0\n\texts.w\t%f0\n\texts.l\t%S0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
}
|
||||
}
|
||||
|
|
@ -2412,12 +2431,12 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
|
|||
}
|
||||
else
|
||||
{
|
||||
*assembler_p = rotate_one[cpu_type][shift_type][shift_mode];
|
||||
info->shift1 = rotate_one[cpu_type][shift_type][shift_mode];
|
||||
if (TARGET_H8300S)
|
||||
*assembler2_p = rotate_two[shift_type][shift_mode];
|
||||
info->shift2 = rotate_two[shift_type][shift_mode];
|
||||
else
|
||||
*assembler2_p = NULL;
|
||||
*cc_valid_p = 0;
|
||||
info->shift2 = NULL;
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_ROT_AND;
|
||||
}
|
||||
}
|
||||
|
|
@ -2426,10 +2445,10 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
|
|||
if (shift_type == SHIFT_ASHIFTRT)
|
||||
{
|
||||
if (TARGET_H8300)
|
||||
*assembler_p = "shll\t%z0\n\tsubx\t%w0,%w0\n\tmov.b\t%w0,%x0\n\tmov.w\t%f0,%e0";
|
||||
info->special = "shll\t%z0\n\tsubx\t%w0,%w0\n\tmov.b\t%w0,%x0\n\tmov.w\t%f0,%e0";
|
||||
else
|
||||
*assembler_p = "shll\t%e0\n\tsubx\t%w0,%w0\n\tmov.b\t%w0,%x0\n\tmov.w\t%f0,%e0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "shll\t%e0\n\tsubx\t%w0,%w0\n\tmov.b\t%w0,%x0\n\tmov.w\t%f0,%e0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
}
|
||||
else
|
||||
|
|
@ -2437,20 +2456,20 @@ get_shift_alg (shift_type, shift_mode, count, assembler_p,
|
|||
if (TARGET_H8300)
|
||||
{
|
||||
if (shift_type == SHIFT_ASHIFT)
|
||||
*assembler_p = "sub.w\t%e0,%e0\n\tshlr\t%w0\n\tmov.w\t%e0,%f0\n\trotxr\t%z0";
|
||||
info->special = "sub.w\t%e0,%e0\n\tshlr\t%w0\n\tmov.w\t%e0,%f0\n\trotxr\t%z0";
|
||||
else
|
||||
*assembler_p = "sub.w\t%f0,%f0\n\tshll\t%z0\n\tmov.w\t%f0,%e0\n\trotxl\t%w0";
|
||||
*cc_valid_p = 0;
|
||||
info->special = "sub.w\t%f0,%f0\n\tshll\t%z0\n\tmov.w\t%f0,%e0\n\trotxl\t%w0";
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_SPECIAL;
|
||||
}
|
||||
else
|
||||
{
|
||||
*assembler_p = rotate_one[cpu_type][shift_type][shift_mode];
|
||||
info->shift1 = rotate_one[cpu_type][shift_type][shift_mode];
|
||||
if (TARGET_H8300S)
|
||||
*assembler2_p = rotate_two[shift_type][shift_mode];
|
||||
info->shift2 = rotate_two[shift_type][shift_mode];
|
||||
else
|
||||
*assembler2_p = NULL;
|
||||
*cc_valid_p = 0;
|
||||
info->shift2 = NULL;
|
||||
info->cc_valid_p = 0;
|
||||
return SHIFT_ROT_AND;
|
||||
}
|
||||
}
|
||||
|
|
@ -2473,14 +2492,12 @@ emit_a_shift (insn, operands)
|
|||
rtx *operands;
|
||||
{
|
||||
static int loopend_lab;
|
||||
const char *assembler;
|
||||
const char *assembler2;
|
||||
int cc_valid;
|
||||
rtx shift = operands[3];
|
||||
enum machine_mode mode = GET_MODE (shift);
|
||||
enum rtx_code code = GET_CODE (shift);
|
||||
enum shift_type shift_type;
|
||||
enum shift_mode shift_mode;
|
||||
struct shift_info info;
|
||||
|
||||
loopend_lab++;
|
||||
|
||||
|
|
@ -2521,11 +2538,10 @@ emit_a_shift (insn, operands)
|
|||
fprintf (asm_out_file, "\tble .Lle%d\n", loopend_lab);
|
||||
|
||||
/* Get the assembler code to do one shift. */
|
||||
get_shift_alg (shift_type, shift_mode, 1, &assembler,
|
||||
&assembler2, &cc_valid);
|
||||
get_shift_alg (shift_type, shift_mode, 1, &info);
|
||||
|
||||
fprintf (asm_out_file, ".Llt%d:\n", loopend_lab);
|
||||
output_asm_insn (assembler, operands);
|
||||
output_asm_insn (info.shift1, operands);
|
||||
output_asm_insn ("add #0xff,%X4", operands);
|
||||
fprintf (asm_out_file, "\tbne .Llt%d\n", loopend_lab);
|
||||
fprintf (asm_out_file, ".Lle%d:\n", loopend_lab);
|
||||
|
|
@ -2546,31 +2562,30 @@ emit_a_shift (insn, operands)
|
|||
else if ((unsigned int) n > GET_MODE_BITSIZE (mode))
|
||||
n = GET_MODE_BITSIZE (mode);
|
||||
|
||||
alg = get_shift_alg (shift_type, shift_mode, n, &assembler,
|
||||
&assembler2, &cc_valid);
|
||||
alg = get_shift_alg (shift_type, shift_mode, n, &info);
|
||||
|
||||
switch (alg)
|
||||
{
|
||||
case SHIFT_INLINE:
|
||||
/* Emit two bit shifts first. */
|
||||
while (n > 1 && assembler2 != NULL)
|
||||
while (n > 1 && info.shift2 != NULL)
|
||||
{
|
||||
output_asm_insn (assembler2, operands);
|
||||
output_asm_insn (info.shift2, operands);
|
||||
n -= 2;
|
||||
}
|
||||
|
||||
/* Now emit one bit shifts for any residual. */
|
||||
while (n > 0)
|
||||
{
|
||||
output_asm_insn (assembler, operands);
|
||||
output_asm_insn (info.shift1, operands);
|
||||
n -= 1;
|
||||
}
|
||||
|
||||
/* Keep track of CC. */
|
||||
if (cc_valid)
|
||||
if (info.cc_valid_p)
|
||||
{
|
||||
cc_status.value1 = operands[0];
|
||||
cc_status.flags |= cc_valid;
|
||||
cc_status.flags |= info.cc_valid_p;
|
||||
}
|
||||
return "";
|
||||
|
||||
|
|
@ -2584,20 +2599,20 @@ emit_a_shift (insn, operands)
|
|||
|
||||
/* Not all possibilities of rotate are supported. They shouldn't
|
||||
be generated, but let's watch for 'em. */
|
||||
if (assembler == 0)
|
||||
if (info.shift1 == 0)
|
||||
abort ();
|
||||
|
||||
/* Emit two bit rotates first. */
|
||||
while (m > 1 && assembler2 != NULL)
|
||||
while (m > 1 && info.shift2 != NULL)
|
||||
{
|
||||
output_asm_insn (assembler2, operands);
|
||||
output_asm_insn (info.shift2, operands);
|
||||
m -= 2;
|
||||
}
|
||||
|
||||
/* Now single bit rotates for any residual. */
|
||||
while (m > 0)
|
||||
{
|
||||
output_asm_insn (assembler, operands);
|
||||
output_asm_insn (info.shift1, operands);
|
||||
m -= 1;
|
||||
}
|
||||
|
||||
|
|
@ -2634,29 +2649,29 @@ emit_a_shift (insn, operands)
|
|||
}
|
||||
|
||||
case SHIFT_SPECIAL:
|
||||
output_asm_insn (assembler, operands);
|
||||
output_asm_insn (info.special, operands);
|
||||
return "";
|
||||
|
||||
case SHIFT_LOOP:
|
||||
/* A loop to shift by a "large" constant value.
|
||||
If we have shift-by-2 insns, use them. */
|
||||
if (assembler2 != NULL)
|
||||
if (info.shift2 != NULL)
|
||||
{
|
||||
fprintf (asm_out_file, "\tmov.b #%d,%sl\n", n / 2,
|
||||
names_big[REGNO (operands[4])]);
|
||||
fprintf (asm_out_file, ".Llt%d:\n", loopend_lab);
|
||||
output_asm_insn (assembler2, operands);
|
||||
output_asm_insn (info.shift2, operands);
|
||||
output_asm_insn ("add #0xff,%X4", operands);
|
||||
fprintf (asm_out_file, "\tbne .Llt%d\n", loopend_lab);
|
||||
if (n % 2)
|
||||
output_asm_insn (assembler, operands);
|
||||
output_asm_insn (info.shift1, operands);
|
||||
}
|
||||
else
|
||||
{
|
||||
fprintf (asm_out_file, "\tmov.b #%d,%sl\n", n,
|
||||
names_big[REGNO (operands[4])]);
|
||||
fprintf (asm_out_file, ".Llt%d:\n", loopend_lab);
|
||||
output_asm_insn (assembler, operands);
|
||||
output_asm_insn (info.shift1, operands);
|
||||
output_asm_insn ("add #0xff,%X4", operands);
|
||||
fprintf (asm_out_file, "\tbne .Llt%d\n", loopend_lab);
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue