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mips.h (ISA_HAS_DMUL3): New macro.

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* config/mips/mips.h (ISA_HAS_DMUL3): New macro.
	* config/mips/mips.md (D): New mode attribute.
	(mulsi3, muldi3): Merge it into ...
	(mul<mode>3): ... new template.  Use _mul3 ending for 3-op
	patterns.
	(muldi3_mul3): New pattern.
	(mulsi3_mult3): Rename to mulsi3_mul3.

testsuite/
	* gcc.target/mips/octeon-dmul-1.c: New test.
	* gcc.target/mips/octeon-dmul-2.c: New test.
	* gcc.target/mips/dmult-1.c: New test.

From-SVN: r139738
This commit is contained in:
Adam Nemet 2008-08-28 21:58:02 +00:00
parent 3debdc1e9d
commit d6d3e623f2
7 changed files with 86 additions and 24 deletions
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16
gcc/ChangeLog
View file

@ -1,6 +1,17 @@
2008-08-28 Adam Nemet <anemet@caviumnetworks.com>
* config/mips/mips.h (ISA_HAS_DMUL3): New macro.
* config/mips/mips.md (D): New mode attribute.
(mulsi3, muldi3): Merge it into ...
(mul<mode>3): ... new template. Use _mul3 ending for 3-op
patterns.
(muldi3_mul3): New pattern.
(mulsi3_mult3): Rename to mulsi3_mul3.
2008-08-28 Jan Hubicka <jh@suse.cz>
* expmed.c (store_bit_field_1): Be prepared for movstrict expander to fail.
* expmed.c (store_bit_field_1): Be prepared for movstrict expander
to fail.
* predict.c (always_optimize_for_size_p): Rename to ...
(optimize_function_for_size): ... this one; make extern.
(optimize_function_for_speed_p): New.
@ -9,7 +20,8 @@
optimize_insn_for_size_p, optimize_insn_for_size_p): Update.
* basic-block.h (optimize_function_for_size_p,
optimize_function_for_speed_p): Declare.
* i386.md (optimize_size checks): Replace them by appropriate predicate.
* i386.md (optimize_size checks): Replace them by appropriate
predicate.
(standard_80387_constant_p, ix86_compute_frame_layout,
ix86_expand_epilogue, ix86_decompose_address,
print_operand, emit_i387_cw_initialization,

3
gcc/config/mips/mips.h
View file

@ -778,6 +778,9 @@ enum mips_code_readable_setting {
|| ISA_MIPS64R2) \
&& !TARGET_MIPS16)
/* ISA has a three-operand multiplication instruction. */
#define ISA_HAS_DMUL3 (TARGET_64BIT && TARGET_OCTEON)
/* ISA has the floating-point conditional move instructions introduced
in mips4. */
#define ISA_HAS_FP_CONDMOVE ((ISA_MIPS4 \

53
gcc/config/mips/mips.md
View file

@ -685,6 +685,13 @@
(HA "") (SA "") (DA "d")
(UHA "") (USA "") (UDA "d")])
;; Same as d but upper-case.
(define_mode_attr D [(SI "") (DI "D")
(QQ "") (HQ "") (SQ "") (DQ "D")
(UQQ "") (UHQ "") (USQ "") (UDQ "D")
(HA "") (SA "") (DA "D")
(UHA "") (USA "") (UDA "D")])
;; This attribute gives the length suffix for a sign- or zero-extension
;; instruction.
(define_mode_attr size [(QI "b") (HI "h")])
@ -1286,35 +1293,23 @@
;; These processors have PRId values of 0x00004220 and 0x00004300,
;; respectively.
(define_expand "mulsi3"
[(set (match_operand:SI 0 "register_operand")
(mult:SI (match_operand:SI 1 "register_operand")
(match_operand:SI 2 "register_operand")))]
(define_expand "mul<mode>3"
[(set (match_operand:GPR 0 "register_operand")
(mult:GPR (match_operand:GPR 1 "register_operand")
(match_operand:GPR 2 "register_operand")))]
""
{
if (ISA_HAS_MUL3)
emit_insn (gen_mulsi3_mult3 (operands[0], operands[1], operands[2]));
if (ISA_HAS_<D>MUL3)
emit_insn (gen_mul<mode>3_mul3 (operands[0], operands[1], operands[2]));
else if (TARGET_FIX_R4000)
emit_insn (gen_mulsi3_r4000 (operands[0], operands[1], operands[2]));
emit_insn (gen_mul<mode>3_r4000 (operands[0], operands[1], operands[2]));
else
emit_insn (gen_mulsi3_internal (operands[0], operands[1], operands[2]));
emit_insn
(gen_mul<mode>3_internal (operands[0], operands[1], operands[2]));
DONE;
})
(define_expand "muldi3"
[(set (match_operand:DI 0 "register_operand")
(mult:DI (match_operand:DI 1 "register_operand")
(match_operand:DI 2 "register_operand")))]
"TARGET_64BIT"
{
if (TARGET_FIX_R4000)
emit_insn (gen_muldi3_r4000 (operands[0], operands[1], operands[2]));
else
emit_insn (gen_muldi3_internal (operands[0], operands[1], operands[2]));
DONE;
})
(define_insn "mulsi3_mult3"
(define_insn "mulsi3_mul3"
[(set (match_operand:SI 0 "register_operand" "=d,l")
(mult:SI (match_operand:SI 1 "register_operand" "d,d")
(match_operand:SI 2 "register_operand" "d,d")))
@ -1330,6 +1325,20 @@
[(set_attr "type" "imul3,imul")
(set_attr "mode" "SI")])
(define_insn "muldi3_mul3"
[(set (match_operand:DI 0 "register_operand" "=d,l")
(mult:DI (match_operand:DI 1 "register_operand" "d,d")
(match_operand:DI 2 "register_operand" "d,d")))
(clobber (match_scratch:DI 3 "=l,X"))]
"ISA_HAS_DMUL3"
{
if (which_alternative == 1)
return "dmult\t%1,%2";
return "dmul\t%0,%1,%2";
}
[(set_attr "type" "imul3,imul")
(set_attr "mode" "DI")])
;; If a register gets allocated to LO, and we spill to memory, the reload
;; will include a move from LO to a GPR. Merge it into the multiplication
;; if it can set the GPR directly.

6
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,9 @@
2008-08-28 Adam Nemet <anemet@caviumnetworks.com>
* gcc.target/mips/octeon-dmul-1.c: New test.
* gcc.target/mips/octeon-dmul-2.c: New test.
* gcc.target/mips/dmult-1.c: New test.
2008-08-28 Xuepeng Guo <xuepeng.guo@intel.com>
Joey Ye <joey.ye@intel.com>
H.J. Lu <hongjiu.lu@intel.com>

12
gcc/testsuite/gcc.target/mips/dmult-1.c Normal file
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@ -0,0 +1,12 @@
/* { dg-do compile { target mips16_attribute } } */
/* { dg-mips-options "-mips64 -mgp64" } */
/* { dg-add-options mips16_attribute } */
/* { dg-final { scan-assembler "\tdmult\t" } } */
/* { dg-final { scan-assembler "\tmflo\t" } } */
/* { dg-final { scan-assembler-not "\tdmul\t" } } */
long long
f (long long a, long long b)
{
return a * b;
}

11
gcc/testsuite/gcc.target/mips/octeon-dmul-1.c Normal file
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@ -0,0 +1,11 @@
/* { dg-do compile } */
/* { dg-mips-options "-march=octeon -mgp64" } */
/* { dg-final { scan-assembler "\tdmul\t" } } */
/* { dg-final { scan-assembler-not "\tdmult\t" } } */
/* { dg-final { scan-assembler-not "\tmflo\t" } } */
NOMIPS16 long long
f (long long a, long long b)
{
return a * b;
}

9
gcc/testsuite/gcc.target/mips/octeon-dmul-2.c Normal file
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@ -0,0 +1,9 @@
/* { dg-do compile } */
/* { dg-mips-options "-march=octeon -mgp64" } */
/* { dg-final { scan-assembler-not "\tdmul" } } */
NOMIPS16 long long
f (long long a)
{
return a * 7;
}