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| author | Will Schmidt <will_schmidt@vnet.ibm.com> | 2017-10-30 14:10:17 +0000 |
|---|---|---|
| committer | Will Schmidt <willschm@gcc.gnu.org> | 2017-10-30 14:10:17 +0000 |
| commit | 198a8e3cc5176e9234343060fe95de4035d23ac3 (patch) | |
| tree | b3e5abd767686c42ac205d27b8e1f14cc921393f /gcc | |
| parent | 78effffca5f505fb8acb0632787b329247d82c79 (diff) | |
| download | gcc-198a8e3cc5176e9234343060fe95de4035d23ac3.zip gcc-198a8e3cc5176e9234343060fe95de4035d23ac3.tar.gz gcc-198a8e3cc5176e9234343060fe95de4035d23ac3.tar.bz2 | |
rs6000.c (rs6000_gimple_fold_builtin): Add support for gimple folding of vec_madd() intrinsics.
[gcc]
2017-10-30 Will Schmidt <will_schmidt@vnet.ibm.com>
* config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add support for
gimple folding of vec_madd() intrinsics.
* config/rs6000/altivec.md (mulv8hi3): Rename altivec_vmladduhm to
fmav8hi4. (altivec_vmladduhm): Rename to fmav8hi4.
* config/rs6000/rs6000-builtin.def: Rename vmladduhm to fmav8hi4
From-SVN: r254221
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/config/rs6000/altivec.md | 5 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000-builtin.def | 2 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 16 |
4 files changed, 28 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5468ee6..c690e33 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2017-10-30 Will Schmidt <will_schmidt@vnet.ibm.com> + + * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add support for + gimple folding of vec_madd() intrinsics. + * config/rs6000/altivec.md (mulv8hi3): Rename altivec_vmladduhm to + fmav8hi4. (altivec_vmladduhm): Rename to fmav8hi4. + * config/rs6000/rs6000-builtin.def: Rename vmladduhm to fmav8hi4 + 2017-10-30 Richard Biener <rguenther@suse.de> PR tree-optimization/82762 diff --git a/gcc/config/rs6000/altivec.md b/gcc/config/rs6000/altivec.md index 6ea529b..b2f173d 100644 --- a/gcc/config/rs6000/altivec.md +++ b/gcc/config/rs6000/altivec.md @@ -795,11 +795,12 @@ rtx zero = gen_reg_rtx (V8HImode); emit_insn (gen_altivec_vspltish (zero, const0_rtx)); - emit_insn (gen_altivec_vmladduhm(operands[0], operands[1], operands[2], zero)); + emit_insn (gen_fmav8hi4 (operands[0], operands[1], operands[2], zero)); DONE; }) + ;; Fused multiply subtract (define_insn "*altivec_vnmsubfp" [(set (match_operand:V4SF 0 "register_operand" "=v") @@ -936,7 +937,7 @@ "vmhraddshs %0,%1,%2,%3" [(set_attr "type" "veccomplex")]) -(define_insn "altivec_vmladduhm" +(define_insn "fmav8hi4" [(set (match_operand:V8HI 0 "register_operand" "=v") (plus:V8HI (mult:V8HI (match_operand:V8HI 1 "register_operand" "v") (match_operand:V8HI 2 "register_operand" "v")) diff --git a/gcc/config/rs6000/rs6000-builtin.def b/gcc/config/rs6000/rs6000-builtin.def index 9804675..c8a425c 100644 --- a/gcc/config/rs6000/rs6000-builtin.def +++ b/gcc/config/rs6000/rs6000-builtin.def @@ -961,7 +961,7 @@ BU_SPECIAL_X (RS6000_BUILTIN_NONE, NULL, 0, RS6000_BTC_MISC) BU_ALTIVEC_3 (VMADDFP, "vmaddfp", FP, fmav4sf4) BU_ALTIVEC_3 (VMHADDSHS, "vmhaddshs", SAT, altivec_vmhaddshs) BU_ALTIVEC_3 (VMHRADDSHS, "vmhraddshs", SAT, altivec_vmhraddshs) -BU_ALTIVEC_3 (VMLADDUHM, "vmladduhm", CONST, altivec_vmladduhm) +BU_ALTIVEC_3 (VMLADDUHM, "vmladduhm", CONST, fmav8hi4) BU_ALTIVEC_3 (VMSUMUBM, "vmsumubm", CONST, altivec_vmsumubm) BU_ALTIVEC_3 (VMSUMMBM, "vmsummbm", CONST, altivec_vmsummbm) BU_ALTIVEC_3 (VMSUMUHM, "vmsumuhm", CONST, altivec_vmsumuhm) diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 3162d52..182dc30 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -16647,6 +16647,22 @@ rs6000_gimple_fold_builtin (gimple_stmt_iterator *gsi) gsi_replace (gsi, g, true); return true; } + + /* Vector Fused multiply-add (fma). */ + case ALTIVEC_BUILTIN_VMADDFP: + case VSX_BUILTIN_XVMADDDP: + case ALTIVEC_BUILTIN_VMLADDUHM: + { + arg0 = gimple_call_arg (stmt, 0); + arg1 = gimple_call_arg (stmt, 1); + tree arg2 = gimple_call_arg (stmt, 2); + lhs = gimple_call_lhs (stmt); + gimple *g = gimple_build_assign (lhs, FMA_EXPR , arg0, arg1, arg2); + gimple_set_location (g, gimple_location (stmt)); + gsi_replace (gsi, g, true); + return true; + } + default: if (TARGET_DEBUG_BUILTIN) fprintf (stderr, "gimple builtin intrinsic not matched:%d %s %s\n", |