diff options
Diffstat (limited to 'llvm/test/Transforms/InstCombine/sprintf-void.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/sprintf-void.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/sprintf-void.ll b/llvm/test/Transforms/InstCombine/sprintf-void.ll new file mode 100644 index 00000000000..e84103be788 --- /dev/null +++ b/llvm/test/Transforms/InstCombine/sprintf-void.ll @@ -0,0 +1,21 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt < %s -instcombine -S | FileCheck %s + +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" + +@hello_world = constant [13 x i8] c"hello world\0A\00" + +declare void @sprintf(i8*, i8*, ...) + +; Check that a sprintf call, that would otherwise be optimized, but with +; optimized out return type, doesn't crash the optimizer. + +define void @test_simplify1(i8* %dst) { +; CHECK-LABEL: @test_simplify1( +; CHECK-NEXT: call void (i8*, i8*, ...) @sprintf(i8* [[DST:%.*]], i8* getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i32 0, i32 0)) +; CHECK-NEXT: ret void +; + %fmt = getelementptr [13 x i8], [13 x i8]* @hello_world, i32 0, i32 0 + call void (i8*, i8*, ...) @sprintf(i8* %dst, i8* %fmt) + ret void +} |
