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| 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 | 462098824f9563f5afd0fb85d1f7368af1fa116d (patch) | |
| tree | 5fac3046caae6624e5fbb54acaa9cd418b571f86 /llvm/test | |
| parent | add38c12b84a57d282aa624ba764a9a2b3f94c44 (diff) | |
| download | bcm5719-llvm-462098824f9563f5afd0fb85d1f7368af1fa116d.tar.gz bcm5719-llvm-462098824f9563f5afd0fb85d1f7368af1fa116d.zip | |
"@string = constant i8 0" is a value i8* string of length zero. Analyze that
correctly in GetStringLength, fixing PR11181!
llvm-svn: 142558
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/Transforms/SimplifyLibCalls/StrLen.ll | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/test/Transforms/SimplifyLibCalls/StrLen.ll b/llvm/test/Transforms/SimplifyLibCalls/StrLen.ll index 45b349d6840..acd8aaf6e54 100644 --- a/llvm/test/Transforms/SimplifyLibCalls/StrLen.ll +++ b/llvm/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 +} |
