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| author | Stuart Hastings <stuart@apple.com> | 2011-06-01 17:17:45 +0000 |
|---|---|---|
| committer | Stuart Hastings <stuart@apple.com> | 2011-06-01 17:17:45 +0000 |
| commit | 10ff0bbdfbeb6f7485979744d16daea4795d45b2 (patch) | |
| tree | 1d37d9920b2173c6502b35b95373217fef2ea2aa /test/CodeGen/X86/isint.ll | |
| parent | f1002828fdaffa4e005a81f269c77fe72951f39f (diff) | |
| download | llvm-10ff0bbdfbeb6f7485979744d16daea4795d45b2.tar.gz llvm-10ff0bbdfbeb6f7485979744d16daea4795d45b2.tar.bz2 llvm-10ff0bbdfbeb6f7485979744d16daea4795d45b2.tar.xz | |
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
Diffstat (limited to 'test/CodeGen/X86/isint.ll')
| -rw-r--r-- | test/CodeGen/X86/isint.ll | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/test/CodeGen/X86/isint.ll b/test/CodeGen/X86/isint.ll index 507a328c3f..4a98e63f38 100644 --- a/test/CodeGen/X86/isint.ll +++ b/test/CodeGen/X86/isint.ll @@ -1,17 +1,15 @@ -; RUN: llc < %s -march=x86 -mattr=+sse2 > %t -; RUN: not grep cmp %t -; RUN: not grep xor %t -; RUN: grep jne %t | count 1 -; RUN: grep jp %t | count 1 -; RUN: grep setnp %t | count 1 -; RUN: grep sete %t | count 1 -; RUN: grep and %t | count 1 -; RUN: grep cvt %t | count 4 +; RUN: llc < %s -march=x86 -mattr=+sse2 | FileCheck %s define i32 @isint_return(double %d) nounwind { +; CHECK-NOT: xor +; CHECK: cvt %i = fptosi double %d to i32 +; CHECK-NEXT: cvt %e = sitofp i32 %i to double +; CHECK: cmpeqsd %c = fcmp oeq double %d, %e +; CHECK-NEXT: movd +; CHECK-NEXT: andl %z = zext i1 %c to i32 ret i32 %z } @@ -19,9 +17,14 @@ define i32 @isint_return(double %d) nounwind { declare void @foo() define void @isint_branch(double %d) nounwind { +; CHECK: cvt %i = fptosi double %d to i32 +; CHECK-NEXT: cvt %e = sitofp i32 %i to double +; CHECK: ucomisd %c = fcmp oeq double %d, %e +; CHECK-NEXT: jne +; CHECK-NEXT: jp br i1 %c, label %true, label %false true: call void @foo() |