| ; Check that eh_return & unwind_init were properly lowered |
| ; RUN: llc < %s -verify-machineinstrs | FileCheck %s |
| |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ; CHECK: test |
| ; CHECK: pushq %rbp |
| ; CHECK: movq %rsp, %rbp |
| ; CHECK: popq %rbp |
| ; CHECK: movq %rcx, %rsp |
| ; CHECK: retq # eh_return, addr: %rcx |
| define i8* @test(i64 %a, i8* %b) { |
| entry: |
| call void @llvm.eh.unwind.init() |
| %foo = alloca i32 |
| call void @llvm.eh.return.i64(i64 %a, i8* %b) |
| unreachable |
| } |
| |
| declare void @llvm.eh.return.i64(i64, i8*) |
| declare void @llvm.eh.unwind.init() |
| |
| @b = common global i32 0, align 4 |
| @a = common global i32 0, align 4 |
| |
| ; PR14750 |
| ; This function contains a normal return as well as eh_return. |
| ; CHECK: _Unwind_Resume_or_Rethrow |
| define i32 @_Unwind_Resume_or_Rethrow() nounwind uwtable ssp { |
| entry: |
| %0 = load i32, i32* @b, align 4 |
| %tobool = icmp eq i32 %0, 0 |
| br i1 %tobool, label %if.end, label %if.then |
| |
| if.then: ; preds = %entry |
| ret i32 0 |
| |
| if.end: ; preds = %entry |
| %call = tail call i32 (...) @_Unwind_ForcedUnwind_Phase2() nounwind |
| store i32 %call, i32* @a, align 4 |
| %tobool1 = icmp eq i32 %call, 0 |
| br i1 %tobool1, label %cond.end, label %cond.true |
| |
| cond.true: ; preds = %if.end |
| tail call void @abort() noreturn nounwind |
| unreachable |
| |
| cond.end: ; preds = %if.end |
| tail call void @llvm.eh.return.i64(i64 0, i8* null) |
| unreachable |
| } |
| |
| declare i32 @_Unwind_ForcedUnwind_Phase2(...) |
| declare void @abort() noreturn |
