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| author | Chris Lattner <sabre@nondot.org> | 2009-04-12 07:51:14 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2009-04-12 07:51:14 +0000 |
| commit | ce6bcf0847329c708a09e1dba8adfb7fd92c4beb (patch) | |
| tree | 7f45f321a998c65107748aaaa832b4fece2baa36 /llvm/test/CodeGen/X86/2009-04-12-FastIselOverflowCrash.ll | |
| parent | a101f6f8d38b798a3d7c102dab1d39280ec49b6e (diff) | |
| download | bcm5719-llvm-ce6bcf0847329c708a09e1dba8adfb7fd92c4beb.tar.gz bcm5719-llvm-ce6bcf0847329c708a09e1dba8adfb7fd92c4beb.zip | |
fix a cross-block fastisel crash handling overflow intrinsics.
See comment for details. This fixes rdar://6772169
llvm-svn: 68890
Diffstat (limited to 'llvm/test/CodeGen/X86/2009-04-12-FastIselOverflowCrash.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/2009-04-12-FastIselOverflowCrash.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/2009-04-12-FastIselOverflowCrash.ll b/llvm/test/CodeGen/X86/2009-04-12-FastIselOverflowCrash.ll new file mode 100644 index 00000000000..bf1c8df377d --- /dev/null +++ b/llvm/test/CodeGen/X86/2009-04-12-FastIselOverflowCrash.ll @@ -0,0 +1,21 @@ +; RUN: llvm-as < %s | llc -fast-isel +; radr://6772169 +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" +target triple = "x86_64-apple-darwin10" + type { i32, i1 } ; type %0 + +declare %0 @llvm.sadd.with.overflow.i32(i32, i32) nounwind + +define fastcc i32 @test() nounwind { +entry: + %tmp1 = call %0 @llvm.sadd.with.overflow.i32(i32 1, i32 0) + %tmp2 = extractvalue %0 %tmp1, 1 + br i1 %tmp2, label %.backedge, label %BB3 + +BB3: + %tmp4 = extractvalue %0 %tmp1, 0 + br label %.backedge + +.backedge: + ret i32 0 +} |
