| ; RUN: llc < %s -mtriple=x86_64-pc-mingw32 | FileCheck %s -check-prefix=WIN64 |
| |
| declare void @bar() |
| declare void @baz() |
| declare i32 @personality(...) |
| |
| ; Check for 'nop' between the last call and the epilogue. |
| define void @foo1() personality i32 (...)* @personality { |
| |
| invoke void @bar() |
| to label %normal |
| unwind label %catch |
| |
| normal: |
| ret void |
| |
| catch: |
| %1 = landingpad { i8*, i32 } cleanup |
| resume { i8*, i32 } %1 |
| } |
| ; WIN64-LABEL: foo1: |
| ; WIN64: .seh_proc foo1 |
| ; WIN64: callq bar |
| ; WIN64: nop |
| ; WIN64: addq ${{[0-9]+}}, %rsp |
| ; WIN64: retq |
| ; Check for 'ud2' after noreturn call |
| ; WIN64: callq _Unwind_Resume |
| ; WIN64-NEXT: ud2 |
| ; WIN64: .seh_endproc |
| |
| |
| ; Check it still works when blocks are reordered. |
| @something = global i32 0 |
| define void @foo2(i1 zeroext %cond ) { |
| br i1 %cond, label %a, label %b, !prof !0 |
| a: |
| call void @bar() |
| br label %done |
| b: |
| call void @baz() |
| store i32 0, i32* @something |
| br label %done |
| done: |
| ret void |
| } |
| !0 = !{!"branch_weights", i32 100, i32 0} |
| ; WIN64-LABEL: foo2: |
| ; WIN64: callq bar |
| ; WIN64: nop |
| ; WIN64: addq ${{[0-9]+}}, %rsp |
| ; WIN64: retq |
| |
| |
| ; Check nop is not emitted when call is not adjacent to epilogue. |
| define i32 @foo3() { |
| call void @bar() |
| ret i32 0 |
| } |
| ; WIN64-LABEL: foo3: |
| ; WIN64: callq bar |
| ; WIN64: xorl |
| ; WIN64-NOT: nop |
| ; WIN64: addq ${{[0-9]+}}, %rsp |
| ; WIN64: retq |
