diff options
| author | Andrew Trick <atrick@apple.com> | 2013-11-14 06:54:10 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2013-11-14 06:54:10 +0000 |
| commit | 72cf01cc7c8f668a17e7fdfe6aaed50e164cac1b (patch) | |
| tree | b9c818979a36538b2eb87abe8b9a543201e8cbd2 /test | |
| parent | 27df434c5e8c78e8b3e6e9596b55a6a6bd8d5116 (diff) | |
| download | llvm-72cf01cc7c8f668a17e7fdfe6aaed50e164cac1b.tar.gz llvm-72cf01cc7c8f668a17e7fdfe6aaed50e164cac1b.tar.bz2 llvm-72cf01cc7c8f668a17e7fdfe6aaed50e164cac1b.tar.xz | |
Minor extension to llvm.experimental.patchpoint: don't require a call.
If a null call target is provided, don't emit a dummy call. This
allows the runtime to reserve as little nop space as it needs without
the requirement of emitting a call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194676 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/patchpoint.ll | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/CodeGen/X86/patchpoint.ll b/test/CodeGen/X86/patchpoint.ll index 5b96916804..0e79a38dd6 100644 --- a/test/CodeGen/X86/patchpoint.ll +++ b/test/CodeGen/X86/patchpoint.ll @@ -79,6 +79,22 @@ entry: ret i64 10 } +; Test small patchpoints that don't emit calls. +define void @small_patchpoint_codegen(i64 %p1, i64 %p2, i64 %p3, i64 %p4) { +entry: +; CHECK-LABEL: small_patchpoint_codegen: +; CHECK: Ltmp +; CHECK: nop +; CHECK-NEXT: nop +; CHECK-NEXT: nop +; CHECK-NEXT: nop +; CHECK-NEXT: nop +; CHECK-NEXT: popq +; CHECK-NEXT: ret + %result = tail call i64 (i32, i32, i8*, i32, ...)* @llvm.experimental.patchpoint.i64(i32 5, i32 5, i8* null, i32 2, i64 %p1, i64 %p2) + ret void +} + declare void @llvm.experimental.stackmap(i32, i32, ...) declare void @llvm.experimental.patchpoint.void(i32, i32, i8*, i32, ...) declare i64 @llvm.experimental.patchpoint.i64(i32, i32, i8*, i32, ...) |