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| author | Andrew Trick <atrick@apple.com> | 2013-11-05 22:44:04 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2013-11-05 22:44:04 +0000 |
| commit | dc8224def3d88915b0ff830687815a9a0aad5f63 (patch) | |
| tree | 5f203af73fc413cca88f5da19a7f233a953ee97f /test | |
| parent | 14cfb10174fa443074c235a207d290a9816392f8 (diff) | |
| download | llvm-dc8224def3d88915b0ff830687815a9a0aad5f63.tar.gz llvm-dc8224def3d88915b0ff830687815a9a0aad5f63.tar.bz2 llvm-dc8224def3d88915b0ff830687815a9a0aad5f63.tar.xz | |
Slightly change the way stackmap and patchpoint intrinsics are lowered.
MorphNodeTo is not safe to call during DAG building. It eagerly
deletes dependent DAG nodes which invalidates the NodeMap. We could
expose a safe interface for morphing nodes, but I don't think it's
worth it. Just create a new MachineNode and replaceAllUsesWith.
My understaning of the SD design has been that we want to support
early target opcode selection. That isn't very well supported, but
generally works. It seems reasonable to rely on this feature even if
it isn't widely used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194102 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/patchpoint.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/CodeGen/X86/patchpoint.ll b/test/CodeGen/X86/patchpoint.ll index 0fe55f784f..92bda7c186 100644 --- a/test/CodeGen/X86/patchpoint.ll +++ b/test/CodeGen/X86/patchpoint.ll @@ -63,6 +63,26 @@ entry: ret void } +; Test patchpoints reusing the same TargetConstant. +; <rdar:15390785> Assertion failed: (CI.getNumArgOperands() >= NumArgs + 4) +; There is no way to verify this, since it depends on memory allocation. +; But I think it's useful to include as a working example. +define i64 @testLowerConstant(i64 %arg, i64 %tmp2, i64 %tmp10, i64* %tmp33, i64 %tmp79) { +entry: + %tmp80 = add i64 %tmp79, -16 + %tmp81 = inttoptr i64 %tmp80 to i64* + %tmp82 = load i64* %tmp81, align 8 + tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 14, i32 5, i64 %arg, i64 %tmp2, i64 %tmp10, i64 %tmp82) + tail call void (i32, i32, i8*, i32, ...)* @llvm.experimental.patchpoint.void(i32 15, i32 30, i8* null, i32 3, i64 %arg, i64 %tmp10, i64 %tmp82) + %tmp83 = load i64* %tmp33, align 8 + %tmp84 = add i64 %tmp83, -24 + %tmp85 = inttoptr i64 %tmp84 to i64* + %tmp86 = load i64* %tmp85, align 8 + tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 17, i32 5, i64 %arg, i64 %tmp10, i64 %tmp86) + tail call void (i32, i32, i8*, i32, ...)* @llvm.experimental.patchpoint.void(i32 18, i32 30, i8* null, i32 3, i64 %arg, i64 %tmp10, i64 %tmp86) + ret i64 10 +} + 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, ...) |