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| author | Dale Johannesen <dalej@apple.com> | 2009-04-24 21:34:13 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2009-04-24 21:34:13 +0000 |
| commit | 2f91f30b932ad56cd82398d872d4874facf84220 (patch) | |
| tree | 57853f284d799d760e7490b90ac8c050027527c5 /test/CodeGen/Generic/fp-to-int-invalid.ll | |
| parent | d55bd51f311fb00c639da6161584b06cf7cb5e27 (diff) | |
| download | external_llvm-2f91f30b932ad56cd82398d872d4874facf84220.zip external_llvm-2f91f30b932ad56cd82398d872d4874facf84220.tar.gz external_llvm-2f91f30b932ad56cd82398d872d4874facf84220.tar.bz2 | |
Fix PR 4057, a crash doing float->char const folding.
This particular one is undefined behavior (although this
isn't related to the crash), so it will no longer do it
at compile time, which seems better.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69990 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Generic/fp-to-int-invalid.ll')
| -rw-r--r-- | test/CodeGen/Generic/fp-to-int-invalid.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/CodeGen/Generic/fp-to-int-invalid.ll b/test/CodeGen/Generic/fp-to-int-invalid.ll new file mode 100644 index 0000000..73176b1 --- /dev/null +++ b/test/CodeGen/Generic/fp-to-int-invalid.ll @@ -0,0 +1,18 @@ +; RUN: llvm-as < %s | llc +; PR4057 +define void @test_cast_float_to_char(i8* %result) nounwind { +entry: + %result_addr = alloca i8* ; <i8**> [#uses=2] + %test = alloca float ; <float*> [#uses=2] + %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] + store i8* %result, i8** %result_addr + store float 0x40B2AFA160000000, float* %test, align 4 + %0 = load float* %test, align 4 ; <float> [#uses=1] + %1 = fptosi float %0 to i8 ; <i8> [#uses=1] + %2 = load i8** %result_addr, align 4 ; <i8*> [#uses=1] + store i8 %1, i8* %2, align 1 + br label %return + +return: ; preds = %entry + ret void +} |