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dbxout.c (FORCE_TEXT): Switch to current_function_decl, not text_section.

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2002-09-26  David Edelsohn  <edelsohn@gnu.org>

        * dbxout.c (FORCE_TEXT): Switch to current_function_decl, not
        text_section.
        * xcoffout.h (DBX_STATIC_BLOCK_START): Remove explicit change to
        text section.
        * config/rs6000/rs6000.c (rs6000_override_options): Allow
        function-sections and data-sections functionality on AIX.

2002-09-26  David Edelsohn  <edelsohn@gnu.org>
            Dale Johannesen  <dalej@apple.com>

        * config/rs6000/rs6000.c (rs6000_emit_move): Insert zero-extend
        in RTL for sub-word loads from memory.

Co-Authored-By: Dale Johannesen <dalej@apple.com>

From-SVN: r57572
This commit is contained in:
David Edelsohn 2002-09-27 03:08:38 +00:00 • committed by David Edelsohn
parent fa4211cb73
commit 67cef334cc
4 changed files with 34 additions and 36 deletions
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15
gcc/ChangeLog
View file

@ -1,3 +1,18 @@
2002-09-26 David Edelsohn <edelsohn@gnu.org>
* dbxout.c (FORCE_TEXT): Switch to current_function_decl, not
text_section.
* xcoffout.h (DBX_STATIC_BLOCK_START): Remove explicit change to
text section.
* config/rs6000/rs6000.c (rs6000_override_options): Allow
function-sections and data-sections functionality on AIX.
2002-09-26 David Edelsohn <edelsohn@gnu.org>
Dale Johannesen <dalej@apple.com>
* config/rs6000/rs6000.c (rs6000_emit_move): Insert zero-extend
in RTL for sub-word loads from memory.
2002-09-26 Richard Henderson <rth@redhat.com>
PR c/7160

33
gcc/config/rs6000/rs6000.c
View file

@ -590,21 +590,6 @@ rs6000_override_options (default_cpu)
flag_pic = 0;
}
#ifdef XCOFF_DEBUGGING_INFO
if (flag_function_sections && (write_symbols != NO_DEBUG)
&& DEFAULT_ABI == ABI_AIX)
{
warning ("-ffunction-sections disabled on AIX when debugging");
flag_function_sections = 0;
}
if (flag_data_sections && (DEFAULT_ABI == ABI_AIX))
{
warning ("-fdata-sections not supported on AIX");
flag_data_sections = 0;
}
#endif
/* For Darwin, always silently make -fpic and -fPIC identical. */
if (flag_pic == 1 && DEFAULT_ABI == ABI_DARWIN)
flag_pic = 2;
@ -2579,8 +2564,22 @@ rs6000_emit_move (dest, source, mode)
return;
}
if (! no_new_pseudos && GET_CODE (operands[0]) != REG)
operands[1] = force_reg (mode, operands[1]);
if (!no_new_pseudos)
{
if (GET_CODE (operands[1]) == MEM && optimize > 0
&& (mode == QImode || mode == HImode || mode == SImode)
&& GET_MODE_SIZE (mode) < GET_MODE_SIZE (word_mode))
{
rtx reg = gen_reg_rtx (word_mode);
emit_insn (gen_rtx_SET (word_mode, reg,
gen_rtx_ZERO_EXTEND (word_mode,
operands[1])));
operands[1] = gen_lowpart (mode, reg);
}
if (GET_CODE (operands[0]) != REG)
operands[1] = force_reg (mode, operands[1]);
}
if (mode == SFmode && ! TARGET_POWERPC
&& TARGET_HARD_FLOAT && TARGET_FPRS

2
gcc/dbxout.c
View file

@ -155,7 +155,7 @@ static int source_label_number = 1;
#endif
#ifdef DEBUG_SYMS_TEXT
#define FORCE_TEXT text_section ();
#define FORCE_TEXT function_section (current_function_decl);
#else
#define FORCE_TEXT
#endif

20
gcc/xcoffout.h
View file

@ -47,30 +47,14 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
#define DBX_STATIC_CONST_VAR_CODE N_STSYM
/* For static variables, output code to define the start of a static block.
??? The IBM rs6000/AIX assembler has a bug that causes bss block debug
info to be occasionally lost. A simple example is this:
int a; static int b;
The commands `gcc -g -c tmp.c; dump -t tmp.o' gives
[10] m 0x00000016 1 0 0x8f 0x0000 .bs
[11] m 0x00000000 1 0 0x90 0x0000 .es
...
[21] m 0x00000000 -2 0 0x85 0x0000 b:S-1
which is wrong. The `b:S-1' must be between the `.bs' and `.es'.
We can apparently work around the problem by forcing the text section
(even if we are already in the text section) immediately before outputting
the `.bs'. This should be fixed in the next major AIX release (3.3?). */
/* For static variables, output code to define the start of a static block. */
#define DBX_STATIC_BLOCK_START(ASMFILE,CODE) \
{ \
if ((CODE) == N_STSYM) \
fprintf ((ASMFILE), "\t.bs\t%s[RW]\n", xcoff_private_data_section_name);\
else if ((CODE) == N_LCSYM) \
{ \
fprintf ((ASMFILE), "%s\n", TEXT_SECTION_ASM_OP); \
fprintf ((ASMFILE), "\t.bs\t%s\n", xcoff_bss_section_name); \
} \
fprintf ((ASMFILE), "\t.bs\t%s\n", xcoff_bss_section_name); \
}
/* For static variables, output code to define the end of a static block. */