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| author | Uros Bizjak <ubizjak@gmail.com> | 2007-03-10 13:52:52 +0100 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2007-03-10 13:52:52 +0100 |
| commit | 79cd820a29e05b45f5f58d9fd77917eb39b689f6 (patch) | |
| tree | 2e4a027f4ef3b71468e37112f2ea5f7048100196 /gcc/config | |
| parent | 343d66ade59f0f8b2a7e94bbdfa7240997efa8a0 (diff) | |
| download | gcc-79cd820a29e05b45f5f58d9fd77917eb39b689f6.zip gcc-79cd820a29e05b45f5f58d9fd77917eb39b689f6.tar.gz gcc-79cd820a29e05b45f5f58d9fd77917eb39b689f6.tar.bz2 | |
i386.md (UNSPEC_C2_FLAG): New constant.
* config/i386/i386.md (UNSPEC_C2_FLAG): New constant.
(fpremxf4_i387, fprem1xf4_i387): Use UNSPEC_C2_FLAG.
(fmodxf3, fmod<mode>3, remainderxf3, remainder<mode>3):
Add LABEL_NUSES to emmitted label.
* config/i386/i386.c (ix86_emit_fp_unordered_jump): Add
branch probability value to emmitted jump insn.
* reg-stack.c (subst_stack_regs_pat)[UNSPEC]: Handle UNSPEC_C2_FLAG.
Do not check life information and do not re-arrange input operands
for UNSPEC_FSCALE_EXP, UNSPEC_FPREM_U and UNSPEC_FPREM1_U.
From-SVN: r122793
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/i386/i386.c | 2 | ||||
| -rw-r--r-- | gcc/config/i386/i386.md | 12 |
2 files changed, 12 insertions, 2 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 469d909..b4928ab 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -21032,7 +21032,9 @@ ix86_emit_fp_unordered_jump (rtx label) gen_rtx_LABEL_REF (VOIDmode, label), pc_rtx); temp = gen_rtx_SET (VOIDmode, pc_rtx, temp); + emit_jump_insn (temp); + predict_jump (REG_BR_PROB_BASE * 10 / 100); } /* Output code to perform a log1p XFmode calculation. */ diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index c0d447e..4ec12fa 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -144,6 +144,8 @@ (UNSPEC_FPREM1_F 90) (UNSPEC_FPREM1_U 91) + (UNSPEC_C2_FLAG 95) + ; SSP patterns (UNSPEC_SP_SET 100) (UNSPEC_SP_TEST 101) @@ -16315,7 +16317,8 @@ (unspec:XF [(match_dup 2) (match_dup 3)] UNSPEC_FPREM_U)) (set (reg:CCFP FPSR_REG) - (unspec:CCFP [(const_int 0)] UNSPEC_NOP))] + (unspec:CCFP [(match_dup 2) (match_dup 3)] + UNSPEC_C2_FLAG))] "TARGET_USE_FANCY_MATH_387" "fprem" [(set_attr "type" "fpspc") @@ -16334,6 +16337,7 @@ emit_insn (gen_fpremxf4_i387 (operands[1], operands[2], operands[1], operands[2])); ix86_emit_fp_unordered_jump (label); + LABEL_NUSES (label) = 1; emit_move_insn (operands[0], operands[1]); DONE; @@ -16356,6 +16360,7 @@ emit_label (label); emit_insn (gen_fpremxf4_i387 (op1, op2, op1, op2)); ix86_emit_fp_unordered_jump (label); + LABEL_NUSES (label) = 1; /* Truncate the result properly for strict SSE math. */ if (SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH @@ -16376,7 +16381,8 @@ (unspec:XF [(match_dup 2) (match_dup 3)] UNSPEC_FPREM1_U)) (set (reg:CCFP FPSR_REG) - (unspec:CCFP [(const_int 0)] UNSPEC_NOP))] + (unspec:CCFP [(match_dup 2) (match_dup 3)] + UNSPEC_C2_FLAG))] "TARGET_USE_FANCY_MATH_387" "fprem1" [(set_attr "type" "fpspc") @@ -16395,6 +16401,7 @@ emit_insn (gen_fprem1xf4_i387 (operands[1], operands[2], operands[1], operands[2])); ix86_emit_fp_unordered_jump (label); + LABEL_NUSES (label) = 1; emit_move_insn (operands[0], operands[1]); DONE; @@ -16418,6 +16425,7 @@ emit_insn (gen_fprem1xf4_i387 (op1, op2, op1, op2)); ix86_emit_fp_unordered_jump (label); + LABEL_NUSES (label) = 1; /* Truncate the result properly for strict SSE math. */ if (SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH |