llvm-6502/pr9127.ll at 0be9f5dde4f2eb47b0fcf0bedc4db96ac9df512c - llvm-6502 - Applefritter: Git

6502/llvm-6502

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Stuart Hastings 10ff0bbdfb Add support for x86 CMPEQSS and friends. These instructions do a

floating-point comparison, generate a mask of 0s or 1s, and generally
DTRT with NaNs.  Only profitable when the user wants a materialized 0
or 1 at runtime.  rdar://problem/5993888


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132404 91177308-0d34-0410-b5e6-96231b3b80d8

2011-06-01 17:17:45 +00:00

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 ; RUN: llc -mtriple=x86_64-linux < %s | FileCheck %s
 ; RUN: llc -mtriple=x86_64-win32 < %s | FileCheck %s
 define i8 @foobar(double %d, double* %x) {
 entry:
   %tmp2 = load double* %x, align 8
   %cmp = fcmp oeq double %tmp2, %d
   %conv3 = zext i1 %cmp to i8
   ret i8 %conv3
 }
 ; test that the load is folded.
 ; CHECK: cmpeqsd	(%{{rdi|rdx}}), %xmm0