diff --git a/llvm/lib/Target/X86/X86AvoidTrailingCall.cpp b/llvm/lib/Target/X86/X86AvoidTrailingCall.cpp --- a/llvm/lib/Target/X86/X86AvoidTrailingCall.cpp +++ b/llvm/lib/Target/X86/X86AvoidTrailingCall.cpp @@ -69,8 +69,8 @@ // A real instruction is a non-meta, non-pseudo instruction. Some pseudos // expand to nothing, and some expand to code. This logic conservatively assumes // they might expand to nothing. -static bool isRealInstruction(MachineInstr &MI) { - return !MI.isPseudo() && !MI.isMetaInstruction(); +static bool isCallOrRealInstruction(MachineInstr &MI) { + return MI.isCall() || (!MI.isPseudo() && !MI.isMetaInstruction()); } // Return true if this is a call instruction, but not a tail call. @@ -100,7 +100,7 @@ continue; // Find the last real instruction in this block. - auto LastRealInstr = llvm::find_if(reverse(MBB), isRealInstruction); + auto LastRealInstr = llvm::find_if(reverse(MBB), isCallOrRealInstruction); // If the block is empty or the last real instruction is a call instruction, // insert an int3. If there is a call instruction, insert the int3 between diff --git a/llvm/test/CodeGen/X86/win64-eh-trailing-statepoint.ll b/llvm/test/CodeGen/X86/win64-eh-trailing-statepoint.ll new file mode 100644 --- /dev/null +++ b/llvm/test/CodeGen/X86/win64-eh-trailing-statepoint.ll @@ -0,0 +1,22 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc -mtriple=x86_64-windows-gnu %s -o - | FileCheck %s + +define void @foo() gc "statepoint-example" personality i8* bitcast (i32 (...)* @__gxx_personality_seh0 to i8*) { +; CHECK-LABEL: foo: +; CHECK: # %bb.0: +; CHECK-NEXT: subq $40, %rsp +; CHECK-NEXT: .seh_stackalloc 40 +; CHECK-NEXT: .seh_endprologue +; CHECK-NEXT: callq raise +; CHECK-NEXT: .Ltmp0: +; CHECK-NEXT: int3 +; CHECK-NEXT: .seh_endproc + %statepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* elementtype(void ()) @raise, i32 0, i32 0, i32 0, i32 0) + unreachable +} + +declare void @raise() + +declare dso_local i32 @__gxx_personality_seh0(...) + +declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 immarg, i32 immarg, void ()*, i32 immarg, i32 immarg, ...)