1 ; Check that eh_return & unwind_init were properly lowered 2 ; RUN: llc < %s -verify-machineinstrs | FileCheck %s 3 4 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" 5 target triple = "x86_64-unknown-linux-gnu" 6 7 ; CHECK: test 8 ; CHECK: pushq %rbp 9 ; CHECK: movq %rsp, %rbp 10 ; CHECK: popq %rbp 11 ; CHECK: movq %rcx, %rsp 12 ; CHECK: retq # eh_return, addr: %rcx 13 define i8* @test(i64 %a, i8* %b) { 14 entry: 15 call void @llvm.eh.unwind.init() 16 %foo = alloca i32 17 call void @llvm.eh.return.i64(i64 %a, i8* %b) 18 unreachable 19 } 20 21 declare void @llvm.eh.return.i64(i64, i8*) 22 declare void @llvm.eh.unwind.init() 23 24 @b = common global i32 0, align 4 25 @a = common global i32 0, align 4 26 27 ; PR14750 28 ; This function contains a normal return as well as eh_return. 29 ; CHECK: _Unwind_Resume_or_Rethrow 30 define i32 @_Unwind_Resume_or_Rethrow() nounwind uwtable ssp { 31 entry: 32 %0 = load i32, i32* @b, align 4 33 %tobool = icmp eq i32 %0, 0 34 br i1 %tobool, label %if.end, label %if.then 35 36 if.then: ; preds = %entry 37 ret i32 0 38 39 if.end: ; preds = %entry 40 %call = tail call i32 (...) @_Unwind_ForcedUnwind_Phase2() nounwind 41 store i32 %call, i32* @a, align 4 42 %tobool1 = icmp eq i32 %call, 0 43 br i1 %tobool1, label %cond.end, label %cond.true 44 45 cond.true: ; preds = %if.end 46 tail call void @abort() noreturn nounwind 47 unreachable 48 49 cond.end: ; preds = %if.end 50 tail call void @llvm.eh.return.i64(i64 0, i8* null) 51 unreachable 52 } 53 54 declare i32 @_Unwind_ForcedUnwind_Phase2(...) 55 declare void @abort() noreturn 56
