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| author | Tim Northover <tnorthover@apple.com> | 2014-04-15 14:00:06 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2014-04-15 14:00:06 +0000 |
| commit | 221b583951edb9d6da21ba8caaabc247f5f622f5 (patch) | |
| tree | 12c489fa2968a8a975b3eef9eaf8c518aafe1b62 | |
| parent | b37cff1ae2f76c430ee765c415cf1d4570c50e36 (diff) | |
| download | bcm5719-llvm-221b583951edb9d6da21ba8caaabc247f5f622f5.tar.gz bcm5719-llvm-221b583951edb9d6da21ba8caaabc247f5f622f5.zip | |
AArch64/ARM64: add patterns for various commutations of FNMADD.
llvm-svn: 206287
| -rw-r--r-- | llvm/lib/Target/ARM64/ARM64InstrInfo.td | 14 | ||||
| -rw-r--r-- | llvm/test/CodeGen/AArch64/fp-dp3.ll | 2 |
2 files changed, 16 insertions, 0 deletions
diff --git a/llvm/lib/Target/ARM64/ARM64InstrInfo.td b/llvm/lib/Target/ARM64/ARM64InstrInfo.td index 29783409363..805dbd169e2 100644 --- a/llvm/lib/Target/ARM64/ARM64InstrInfo.td +++ b/llvm/lib/Target/ARM64/ARM64InstrInfo.td @@ -2033,6 +2033,20 @@ def : Pat<(f32 (fma (fneg FPR32:$Rn), FPR32:$Rm, FPR32:$Ra)), def : Pat<(f64 (fma (fneg FPR64:$Rn), FPR64:$Rm, FPR64:$Ra)), (FMSUBDrrr FPR64:$Rn, FPR64:$Rm, FPR64:$Ra)>; +// We handled -(a + b*c) for FNMADD above, now it's time for "(-a) + (-b)*c" and +// "(-a) + b*(-c)". +def : Pat<(f32 (fma (fneg FPR32:$Rn), FPR32:$Rm, (fneg FPR32:$Ra))), + (FNMADDSrrr FPR32:$Rn, FPR32:$Rm, FPR32:$Ra)>; + +def : Pat<(f64 (fma (fneg FPR64:$Rn), FPR64:$Rm, (fneg FPR64:$Ra))), + (FNMADDDrrr FPR64:$Rn, FPR64:$Rm, FPR64:$Ra)>; + +def : Pat<(f32 (fma FPR32:$Rn, (fneg FPR32:$Rm), (fneg FPR32:$Ra))), + (FNMADDSrrr FPR32:$Rn, FPR32:$Rm, FPR32:$Ra)>; + +def : Pat<(f64 (fma FPR64:$Rn, (fneg FPR64:$Rm), (fneg FPR64:$Ra))), + (FNMADDDrrr FPR64:$Rn, FPR64:$Rm, FPR64:$Ra)>; + //===----------------------------------------------------------------------===// // Floating point comparison instructions. //===----------------------------------------------------------------------===// diff --git a/llvm/test/CodeGen/AArch64/fp-dp3.ll b/llvm/test/CodeGen/AArch64/fp-dp3.ll index 2a6790e99c6..e6da7c8762b 100644 --- a/llvm/test/CodeGen/AArch64/fp-dp3.ll +++ b/llvm/test/CodeGen/AArch64/fp-dp3.ll @@ -1,5 +1,7 @@ ; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu -fp-contract=fast | FileCheck %s ; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu | FileCheck %s -check-prefix=CHECK-NOFAST +; RUN: llc -verify-machineinstrs -o - %s -mtriple=arm64-none-linux-gnu -fp-contract=fast | FileCheck %s +; RUN: llc -verify-machineinstrs -o - %s -mtriple=arm64-apple-ios7.0 | FileCheck %s -check-prefix=CHECK-NOFAST declare float @llvm.fma.f32(float, float, float) declare double @llvm.fma.f64(double, double, double) |
