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| author | Nick Lewycky <nicholas@mxc.ca> | 2013-03-11 21:44:37 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2013-03-11 21:44:37 +0000 |
| commit | 33cdfe9f1943418604be5c800800394ae809fc4c (patch) | |
| tree | d9ece7ae1740bbdd3ed0f9bc424bf083192b1646 /test/CodeGen/X86/fast-isel-expect.ll | |
| parent | 12dccaed9c0368f4f5ef4312c32b375c725c9daf (diff) | |
| download | llvm-33cdfe9f1943418604be5c800800394ae809fc4c.tar.gz llvm-33cdfe9f1943418604be5c800800394ae809fc4c.tar.bz2 llvm-33cdfe9f1943418604be5c800800394ae809fc4c.tar.xz | |
Fix a crasher newly introduced in r176659/r176649, where fast-isel tries to
lower an expect intrinsic that is a constant expression.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176830 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/fast-isel-expect.ll')
| -rw-r--r-- | test/CodeGen/X86/fast-isel-expect.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/test/CodeGen/X86/fast-isel-expect.ll b/test/CodeGen/X86/fast-isel-expect.ll new file mode 100644 index 0000000000..1f53348bd0 --- /dev/null +++ b/test/CodeGen/X86/fast-isel-expect.ll @@ -0,0 +1,23 @@ +; RUN: llc < %s -O0 -march=x86 | FileCheck %s + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +@glbl = extern_weak constant i8 + +declare i64 @llvm.expect.i64(i64, i64) #0 + +define void @test() { +; CHECK: movl $glbl + %tmp = call i64 @llvm.expect.i64(i64 zext (i1 icmp eq (i8* @glbl, i8* null) to i64), i64 0) + %tmp2 = icmp ne i64 %tmp, 0 + br i1 %tmp2, label %bb1, label %bb2 + +bb1: + unreachable + +bb2: + unreachable +} + +attributes #0 = { nounwind readnone } |