| ; RUN: llc < %s -mtriple=x86_64-windows-msvc | FileCheck %s |
| |
| %struct.MakeCleanup = type { i8 } |
| %eh.ThrowInfo = type { i32, i32, i32, i32 } |
| |
| ; Function Attrs: noinline nounwind optnone uwtable |
| define dso_local i32 @foo() { |
| entry: |
| %call = call i32 @cond() |
| %tobool = icmp ne i32 %call, 0 |
| br i1 %tobool, label %if.then, label %if.end |
| |
| if.then: ; preds = %entry |
| call void @abort1() |
| unreachable |
| |
| if.end: ; preds = %entry |
| %call1 = call i32 @cond() |
| %tobool2 = icmp ne i32 %call1, 0 |
| br i1 %tobool2, label %if.then3, label %if.end4 |
| |
| if.then3: ; preds = %if.end |
| call void @abort2() |
| unreachable |
| |
| if.end4: ; preds = %if.end |
| %call5 = call i32 @cond() |
| %tobool6 = icmp ne i32 %call5, 0 |
| br i1 %tobool6, label %if.then7, label %if.end8 |
| |
| if.then7: ; preds = %if.end4 |
| call void @abort3() |
| unreachable |
| |
| if.end8: ; preds = %if.end4 |
| ret i32 0 |
| } |
| |
| ; CHECK-LABEL: foo: |
| ; CHECK: callq cond |
| ; CHECK: callq cond |
| ; CHECK: callq cond |
| ; We don't need int3's between these calls to abort, since they won't confuse |
| ; the unwinder. |
| ; CHECK: callq abort1 |
| ; CHECK-NEXT: # %if.then3 |
| ; CHECK: callq abort2 |
| ; CHECK-NEXT: # %if.then7 |
| ; CHECK: callq abort3 |
| ; CHECK-NEXT: int3 |
| |
| declare dso_local i32 @cond() |
| |
| declare dso_local void @abort1() noreturn |
| declare dso_local void @abort2() noreturn |
| declare dso_local void @abort3() noreturn |
| |
| define dso_local void @throw_exception() uwtable personality i32 (...)* @__CxxFrameHandler3 { |
| entry: |
| %o = alloca %struct.MakeCleanup, align 1 |
| %call = invoke i32 @cond() |
| to label %invoke.cont unwind label %ehcleanup |
| |
| invoke.cont: ; preds = %entry |
| %cmp1 = icmp eq i32 0, %call |
| br i1 %cmp1, label %if.then, label %if.end |
| |
| if.then: ; preds = %invoke.cont |
| invoke void @_CxxThrowException(i8* null, %eh.ThrowInfo* null) |
| to label %unreachable unwind label %ehcleanup |
| |
| if.end: ; preds = %invoke.cont |
| %call2 = invoke i32 @cond() |
| to label %invoke.cont1 unwind label %ehcleanup |
| |
| invoke.cont1: ; preds = %if.end |
| %cmp2 = icmp eq i32 0, %call2 |
| br i1 %cmp2, label %if.then3, label %if.end4 |
| |
| if.then3: ; preds = %invoke.cont1 |
| invoke void @_CxxThrowException(i8* null, %eh.ThrowInfo* null) |
| to label %unreachable unwind label %ehcleanup |
| |
| if.end4: ; preds = %invoke.cont1 |
| call void @"??1MakeCleanup@@QEAA@XZ"(%struct.MakeCleanup* nonnull %o) |
| ret void |
| |
| ehcleanup: ; preds = %if.then3, %if.end, %if.then, %entry |
| %cp = cleanuppad within none [] |
| call void @"??1MakeCleanup@@QEAA@XZ"(%struct.MakeCleanup* nonnull %o) [ "funclet"(token %cp) ] |
| cleanupret from %cp unwind to caller |
| |
| unreachable: ; preds = %if.then3, %if.then |
| unreachable |
| } |
| |
| declare dso_local i32 @__CxxFrameHandler3(...) |
| declare dso_local void @_CxxThrowException(i8*, %eh.ThrowInfo*) |
| declare dso_local void @"??1MakeCleanup@@QEAA@XZ"(%struct.MakeCleanup*) |
| |
| ; CHECK-LABEL: throw_exception: |
| ; CHECK: callq cond |
| ; CHECK: je |
| ; CHECK: callq cond |
| ; CHECK: je |
| ; CHECK: retq |
| ; CHECK: callq _CxxThrowException |
| ; CHECK-NOT: {{(addq|subq) .*, %rsp}} |
| ; CHECK: callq _CxxThrowException |
| ; CHECK-NOT: {{(addq|subq) .*, %rsp}} |
| ; CHECK: # %unreachable |
| ; CHECK: int3 |
| ; CHECK: .seh_handlerdata |
