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| author | Craig Topper <craig.topper@gmail.com> | 2012-01-13 08:12:35 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2012-01-13 08:12:35 +0000 |
| commit | 12216172c04fe76a90e9de34fc4161e92d097278 (patch) | |
| tree | 6015625f4477bedeb225a8509b1726a279102b80 /lib/Target/X86/X86InstrInfo.cpp | |
| parent | db080e814fcc2b67e2790351539053c8b9d13639 (diff) | |
| download | external_llvm-12216172c04fe76a90e9de34fc4161e92d097278.zip external_llvm-12216172c04fe76a90e9de34fc4161e92d097278.tar.gz external_llvm-12216172c04fe76a90e9de34fc4161e92d097278.tar.bz2 | |
Make X86 instruction selection use 256-bit VPXOR for build_vector of all ones if AVX2 is enabled. This gives the ExeDepsFix pass a chance to choose FP vs int as appropriate. Also use v8i32 as the type for getZeroVector if AVX2 is enabled. This is consistent with SSE2 using prefering v4i32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148108 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86InstrInfo.cpp')
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index f5ca7c2..cd74a25 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -2908,6 +2908,7 @@ MachineInstr* X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF, case X86::AVX_SET0PSY: case X86::AVX_SET0PDY: case X86::AVX2_SETALLONES: + case X86::AVX2_SET0: Alignment = 32; break; case X86::V_SET0: @@ -2952,6 +2953,7 @@ MachineInstr* X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF, case X86::AVX_SET0PDY: case X86::AVX_SETALLONES: case X86::AVX2_SETALLONES: + case X86::AVX2_SET0: case X86::FsFLD0SD: case X86::FsFLD0SS: { // Folding a V_SET0 or V_SETALLONES as a load, to ease register pressure. @@ -2985,7 +2987,7 @@ MachineInstr* X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF, Ty = Type::getDoubleTy(MF.getFunction()->getContext()); else if (Opc == X86::AVX_SET0PSY || Opc == X86::AVX_SET0PDY) Ty = VectorType::get(Type::getFloatTy(MF.getFunction()->getContext()), 8); - else if (Opc == X86::AVX2_SETALLONES) + else if (Opc == X86::AVX2_SETALLONES || Opc == X86::AVX2_SET0) Ty = VectorType::get(Type::getInt32Ty(MF.getFunction()->getContext()), 8); else Ty = VectorType::get(Type::getInt32Ty(MF.getFunction()->getContext()), 4); |