llvm-6502/avx-bitcast.ll at 2cf4fb488437f2d9107a6ad280a215016a34c901 - llvm-6502 - Applefritter: Git

6502/llvm-6502

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Bruno Cardoso Lopes 7ec8fb8830 Add a AVX version of a simple i64 -> f64 bitcast. This could be

triggered using llc with -O0, which wouldn't let it be folded and
expose the lack of this pattern.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139320 91177308-0d34-0410-b5e6-96231b3b80d8

2011-09-08 21:52:33 +00:00

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 ; RUN: llc < %s -O0 -mtriple=x86_64-apple-darwin -mcpu=corei7-avx -mattr=+avx | FileCheck %s
 ; CHECK: vmovsd (%
 ; CHECK-NEXT: vmovd %xmm
 define i64 @bitcasti64tof64() {
   %a = load double* undef
   %b = bitcast double %a to i64
   ret i64 %b
 }