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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
commit433f6f62ca858c20d5d3f561e63818c2fda06ebe (patch)
tree1b0ac953f5512806efbfc08f3ee5d241f711be50 /test/CodeGen/ARM
parent819a66cf2582f6d9108a7a7f4a75175d7901a8dc (diff)
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Constant fold SIGN_EXTEND_INREG with ashr not lshr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47992 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/ARM')
-rw-r--r--test/CodeGen/ARM/2008-03-05-SxtInRegBug.ll14
1 files changed, 14 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/2008-03-05-SxtInRegBug.ll b/test/CodeGen/ARM/2008-03-05-SxtInRegBug.ll
new file mode 100644
index 0000000..ca34275
--- /dev/null
+++ b/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
+}