| ; RUN: opt -S -winehprepare -dwarfehprepare -mtriple x86_64-pc-windows-msvc < %s | FileCheck %s |
| |
| ; FIXME: Add and test outlining here. |
| |
| declare void @maybe_throw() |
| |
| @_ZTIi = external constant i8* |
| @g = external global i32 |
| |
| declare i32 @__C_specific_handler(...) |
| declare i32 @__gxx_personality_seh0(...) |
| declare i32 @llvm.eh.typeid.for(i8*) readnone nounwind |
| |
| define i32 @use_seh() { |
| entry: |
| invoke void @maybe_throw() |
| to label %cont unwind label %lpad |
| |
| cont: |
| ret i32 0 |
| |
| lpad: |
| %ehvals = landingpad { i8*, i32 } personality i32 (...)* @__C_specific_handler |
| cleanup |
| catch i8* bitcast (i32 (i8*, i8*)* @filt_g to i8*) |
| %ehsel = extractvalue { i8*, i32 } %ehvals, 1 |
| %filt_g_sel = call i32 @llvm.eh.typeid.for(i8* bitcast (i32 (i8*, i8*)* @filt_g to i8*)) |
| %matches = icmp eq i32 %ehsel, %filt_g_sel |
| br i1 %matches, label %ret1, label %eh.resume |
| |
| ret1: |
| ret i32 1 |
| |
| eh.resume: |
| resume { i8*, i32 } %ehvals |
| } |
| |
| define internal i32 @filt_g(i8*, i8*) { |
| %g = load i32, i32* @g |
| ret i32 %g |
| } |
| |
| ; CHECK-LABEL: define i32 @use_seh() |
| ; CHECK: invoke void @maybe_throw() |
| ; CHECK-NEXT: to label %cont unwind label %lpad |
| ; CHECK: landingpad |
| ; CHECK-NEXT: cleanup |
| ; CHECK-NEXT: catch |
| ; CHECK-NEXT: call i8* (...) @llvm.eh.actions({{.*}}) |
| |
| |
| ; A MinGW64-ish EH style. It could happen if a binary uses both MSVC CRT and |
| ; mingw CRT and is linked with LTO. |
| define i32 @use_gcc() { |
| entry: |
| invoke void @maybe_throw() |
| to label %cont unwind label %lpad |
| |
| cont: |
| ret i32 0 |
| |
| lpad: |
| %ehvals = landingpad { i8*, i32 } personality i32 (...)* @__gxx_personality_seh0 |
| cleanup |
| catch i8* bitcast (i8** @_ZTIi to i8*) |
| %ehsel = extractvalue { i8*, i32 } %ehvals, 1 |
| %filt_g_sel = call i32 @llvm.eh.typeid.for(i8* bitcast (i32 (i8*, i8*)* @filt_g to i8*)) |
| %matches = icmp eq i32 %ehsel, %filt_g_sel |
| br i1 %matches, label %ret1, label %eh.resume |
| |
| ret1: |
| ret i32 1 |
| |
| eh.resume: |
| resume { i8*, i32 } %ehvals |
| } |
| |
| ; CHECK-LABEL: define i32 @use_gcc() |
| ; CHECK: invoke void @maybe_throw() |
| ; CHECK-NEXT: to label %cont unwind label %lpad |
| ; CHECK: eh.resume: |
| ; CHECK: call void @_Unwind_Resume(i8* %exn.obj) |