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| author | Dorit Nuzman <dorit@il.ibm.com> | 2008-09-07 08:54:00 +0000 |
|---|---|---|
| committer | Ira Rosen <irar@gcc.gnu.org> | 2008-09-07 08:54:00 +0000 |
| commit | cc54af2085468f38cb4ce0b7f8a644a17ac9dd20 (patch) | |
| tree | f05693dc559cf15edd83dca04f265331b78e174e /gcc/config/rs6000 | |
| parent | c0cf64a28761cb9014cc03f064159af02c5b12aa (diff) | |
| download | gcc-cc54af2085468f38cb4ce0b7f8a644a17ac9dd20.zip gcc-cc54af2085468f38cb4ce0b7f8a644a17ac9dd20.tar.gz gcc-cc54af2085468f38cb4ce0b7f8a644a17ac9dd20.tar.bz2 | |
re PR tree-optimization/35642 (short * short multiplication not vectorized on Power)
PR tree-optimization/35642
* config/rs6000/altivec.md (mulv8hi3): Implement.
Co-Authored-By: Ira Rosen <irar@il.ibm.com>
From-SVN: r140083
Diffstat (limited to 'gcc/config/rs6000')
| -rw-r--r-- | gcc/config/rs6000/altivec.md | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/config/rs6000/altivec.md b/gcc/config/rs6000/altivec.md index e8028ed..5edd248 100644 --- a/gcc/config/rs6000/altivec.md +++ b/gcc/config/rs6000/altivec.md @@ -647,6 +647,28 @@ DONE; }") +(define_expand "mulv8hi3" + [(use (match_operand:V8HI 0 "register_operand" "")) + (use (match_operand:V8HI 1 "register_operand" "")) + (use (match_operand:V8HI 2 "register_operand" ""))] + "TARGET_ALTIVEC" + " +{ + rtx odd = gen_reg_rtx (V4SImode); + rtx even = gen_reg_rtx (V4SImode); + rtx high = gen_reg_rtx (V4SImode); + rtx low = gen_reg_rtx (V4SImode); + + emit_insn (gen_altivec_vmulesh (even, operands[1], operands[2])); + emit_insn (gen_altivec_vmulosh (odd, operands[1], operands[2])); + + emit_insn (gen_altivec_vmrghw (high, even, odd)); + emit_insn (gen_altivec_vmrglw (low, even, odd)); + + emit_insn (gen_altivec_vpkuwum (operands[0], high, low)); + + DONE; +}") ;; Fused multiply subtract (define_insn "altivec_vnmsubfp" |