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authorEvan Cheng <evan.cheng@apple.com>2008-03-06 08:20:51 +0000
committerEvan Cheng <evan.cheng@apple.com>2008-03-06 08:20:51 +0000
commita3cb090446dc234acd7e9bd547e67da0f79b8a74 (patch)
tree9ad6a6544e3d87fd607bab596e607b67de08b0a9 /llvm/test/CodeGen/ARM
parentf458289484108631f196481aeb1ea9ad9cf6c582 (diff)
downloadbcm5719-llvm-a3cb090446dc234acd7e9bd547e67da0f79b8a74.tar.gz
bcm5719-llvm-a3cb090446dc234acd7e9bd547e67da0f79b8a74.zip
Constant fold SIGN_EXTEND_INREG with ashr not lshr.
llvm-svn: 47992
Diffstat (limited to 'llvm/test/CodeGen/ARM')
-rw-r--r--llvm/test/CodeGen/ARM/2008-03-05-SxtInRegBug.ll14
1 files changed, 14 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/ARM/2008-03-05-SxtInRegBug.ll b/llvm/test/CodeGen/ARM/2008-03-05-SxtInRegBug.ll
new file mode 100644
index 00000000000..ca34275f79f
--- /dev/null
+++ b/llvm/test/CodeGen/ARM/2008-03-05-SxtInRegBug.ll
@@ -0,0 +1,14 @@
+; RUN: llvm-as < %s | llc -march=arm -mattr=+v6 | not grep 255
+
+define i32 @main(i32 %argc, i8** %argv) {
+entry:
+ br label %bb1
+bb1: ; preds = %entry
+ %tmp3.i.i = load i8* null, align 1 ; <i8> [#uses=1]
+ %tmp4.i.i = icmp slt i8 %tmp3.i.i, 0 ; <i1> [#uses=1]
+ br i1 %tmp4.i.i, label %bb2, label %bb3
+bb2: ; preds = %bb1
+ ret i32 1
+bb3: ; preds = %bb1
+ ret i32 0
+}
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