diff options
Diffstat (limited to 'llvm/test/Transforms/InstCombine/memset_chk-1.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/memset_chk-1.ll | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/memset_chk-1.ll b/llvm/test/Transforms/InstCombine/memset_chk-1.ll index 27f7293a6bc..56ea14c8292 100644 --- a/llvm/test/Transforms/InstCombine/memset_chk-1.ll +++ b/llvm/test/Transforms/InstCombine/memset_chk-1.ll @@ -63,4 +63,30 @@ define i8* @test_no_simplify2() { ret i8* %ret } +; Test that RAUW in SimplifyLibCalls for __memset_chk generates valid IR +define i32 @test_rauw(i8* %a, i8* %b, i8** %c) { +; CHECK-LABEL: test_rauw +entry: + %call49 = call i64 @strlen(i8* %a) + %add180 = add i64 %call49, 1 + %yo107 = call i64 @llvm.objectsize.i64.p0i8(i8* %b, i1 false) + %call50 = call i8* @__memmove_chk(i8* %b, i8* %a, i64 %add180, i64 %yo107) +; CHECK: %strlen = call i64 @strlen(i8* %b) +; CHECK-NEXT: %strchr2 = getelementptr i8, i8* %b, i64 %strlen + %call51i = call i8* @strrchr(i8* %b, i32 0) + %d = load i8*, i8** %c, align 8 + %sub182 = ptrtoint i8* %d to i64 + %sub183 = ptrtoint i8* %b to i64 + %sub184 = sub i64 %sub182, %sub183 + %add52.i.i = add nsw i64 %sub184, 1 +; CHECK: call void @llvm.memset.p0i8.i64(i8* %strchr2 + %call185 = call i8* @__memset_chk(i8* %call51i, i32 0, i64 %add52.i.i, i64 -1) + ret i32 4 +} + +declare i8* @__memmove_chk(i8*, i8*, i64, i64) +declare i8* @strrchr(i8*, i32) +declare i64 @strlen(i8* nocapture) +declare i64 @llvm.objectsize.i64.p0i8(i8*, i1) + declare i8* @__memset_chk(i8*, i32, i64, i64) |
