diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.cpp | 2 | ||||
| -rw-r--r-- | llvm/test/CodeGen/X86/3addr-shufps.ll | 11 |
2 files changed, 12 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp index 08306419f5a..dc97185ed95 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.cpp +++ b/llvm/lib/Target/X86/X86InstrInfo.cpp @@ -2146,7 +2146,7 @@ X86InstrInfo::convertToThreeAddress(MachineFunction::iterator &MFI, unsigned B = MI->getOperand(1).getReg(); unsigned C = MI->getOperand(2).getReg(); if (B != C) return nullptr; - unsigned M = MI->getOperand(3).getImm(); + int64_t M = MI->getOperand(3).getImm(); NewMI = BuildMI(MF, MI->getDebugLoc(), get(X86::PSHUFDri)) .addOperand(Dest).addOperand(Src).addImm(M); break; diff --git a/llvm/test/CodeGen/X86/3addr-shufps.ll b/llvm/test/CodeGen/X86/3addr-shufps.ll new file mode 100644 index 00000000000..8603df9a7ab --- /dev/null +++ b/llvm/test/CodeGen/X86/3addr-shufps.ll @@ -0,0 +1,11 @@ +; RUN: llc < %s -mtriple=x86_64-apple-darwin13 -mcpu=pentium4 | FileCheck %s + +define <4 x float> @test1(<4 x i32>, <4 x float> %b) { + %s = shufflevector <4 x float> %b, <4 x float> undef, <4 x i32> <i32 1, i32 1, i32 2, i32 3> + ret <4 x float> %s + +; We convert shufps -> pshufd here to save a move. +; CHECK-LABEL: test1: +; CHECK: pshufd $-27, %xmm1, %xmm0 +; CHECK-NEXT: ret +} |
