diff options
| author | Nick Lewycky <nicholas@mxc.ca> | 2011-10-20 00:34:35 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2011-10-20 00:34:35 +0000 |
| commit | 0cd0fee91eadcee37d01398e05176e7c63bda2a7 (patch) | |
| tree | 31a0f95a4e71949ff31bb21cc0d5d29ce73540a5 /test/Transforms | |
| parent | 6690bca623d1f6405b95db5b1760f7ba8436e3fb (diff) | |
| download | llvm-0cd0fee91eadcee37d01398e05176e7c63bda2a7.tar.gz llvm-0cd0fee91eadcee37d01398e05176e7c63bda2a7.tar.bz2 llvm-0cd0fee91eadcee37d01398e05176e7c63bda2a7.tar.xz | |
"@string = constant i8 0" is a value i8* string of length zero. Analyze that
correctly in GetStringLength, fixing PR11181!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142558 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/SimplifyLibCalls/StrLen.ll | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/test/Transforms/SimplifyLibCalls/StrLen.ll b/test/Transforms/SimplifyLibCalls/StrLen.ll index 45b349d684..acd8aaf6e5 100644 --- a/test/Transforms/SimplifyLibCalls/StrLen.ll +++ b/test/Transforms/SimplifyLibCalls/StrLen.ll @@ -6,6 +6,7 @@ target datalayout = "e-p:32:32" @hello = constant [6 x i8] c"hello\00" ; <[6 x i8]*> [#uses=3] @null = constant [1 x i8] zeroinitializer ; <[1 x i8]*> [#uses=3] @null_hello = constant [7 x i8] c"\00hello\00" ; <[7 x i8]*> [#uses=1] +@nullstring = constant i8 0 declare i32 @strlen(i8*) @@ -54,3 +55,8 @@ define i1 @test7() { %ne_null = icmp ne i32 %null_l, 0 ; <i1> [#uses=1] ret i1 %ne_null } + +define i32 @test8() { + %len = tail call i32 @strlen(i8* @nullstring) nounwind + ret i32 %len +} |