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Diffstat (limited to 'test/Transforms/CodeGenPrepare/X86/memset_chk-simplify-nobuiltin.ll')
| -rw-r--r-- | test/Transforms/CodeGenPrepare/X86/memset_chk-simplify-nobuiltin.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/Transforms/CodeGenPrepare/X86/memset_chk-simplify-nobuiltin.ll b/test/Transforms/CodeGenPrepare/X86/memset_chk-simplify-nobuiltin.ll new file mode 100644 index 0000000..1e12c01 --- /dev/null +++ b/test/Transforms/CodeGenPrepare/X86/memset_chk-simplify-nobuiltin.ll @@ -0,0 +1,18 @@ +; RUN: opt -S -disable-simplify-libcalls -codegenprepare < %s | FileCheck %s +target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" + +; This is a workaround for PR23093: when building with -mkernel/-fno-builtin, +; we still generate fortified library calls. + +; Check that we ignore two things: +; - attribute nobuiltin +; - TLI::has (always returns false thanks to -disable-simplify-libcalls) + +; CHECK-NOT: _chk +; CHECK: call void @llvm.memset.p0i8.i64(i8* %dst, i8 0, i64 %len, i32 1, i1 false) +define void @test_nobuiltin(i8* %dst, i64 %len) { + call i8* @__memset_chk(i8* %dst, i32 0, i64 %len, i64 -1) nobuiltin + ret void +} + +declare i8* @__memset_chk(i8*, i32, i64, i64) |