testcase reduced from Ptrdist/bc that is miscompiled by recent instcombine changes.

llvm-svn: 26151
2006-02-13 22:31:50 +00:00 · 2006-02-13 22:31:50 +00:00 · 5898effde0
parent d2d174dd0e
commit 5898effde0
1 changed files with 9 additions and 0 deletions
--- a/llvm/test/Regression/Transforms/InstCombine/2006-02-13-DemandedMiscompile.ll
+++ b/llvm/test/Regression/Transforms/InstCombine/2006-02-13-DemandedMiscompile.ll
@ -0,0 +1,9 @@
+; RUN: llvm-as < %s | opt -instcombine -disable-output &&
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep undef
+
+int %test(sbyte %A) {
+	%B = cast sbyte %A to int
+	%C = shr int %B, ubyte 8
+	ret int %C
+}
+