1 ; RUN: llc -mtriple=x86_64-pc-windows-msvc < %s -enable-shrink-wrap=false | FileCheck %s 2 ; Make sure shrink-wrapping does not break the lowering of exception handling. 3 ; RUN: llc -mtriple=x86_64-pc-windows-msvc < %s -enable-shrink-wrap=true -pass-remarks-output=%t | FileCheck %s 4 ; RUN: cat %t | FileCheck %s --check-prefix=REMARKS 5 6 ; Repro cases from PR25168 7 8 ; test @catchret - catchret target is not address-taken until PEI 9 ; splits it into lea/mov followed by ret. Make sure the MBB is 10 ; handled, both by tempting BranchFolding to merge it with %early_out 11 ; and delete it, and by checking that we emit a proper reference 12 ; to it in the LEA 13 14 declare void @ProcessCLRException() 15 declare void @f() 16 17 define void @catchret(i1 %b) personality void ()* @ProcessCLRException { 18 entry: 19 br i1 %b, label %body, label %early_out 20 early_out: 21 ret void 22 body: 23 invoke void @f() 24 to label %exit unwind label %catch.pad 25 catch.pad: 26 %cs1 = catchswitch within none [label %catch.body] unwind to caller 27 catch.body: 28 %catch = catchpad within %cs1 [i32 33554467] 29 catchret from %catch to label %exit 30 exit: 31 ret void 32 } 33 ; CHECK-LABEL: catchret: # @catchret 34 ; CHECK: [[Exit:^[^ :]+]]: # Block address taken 35 ; CHECK-NEXT: # %exit 36 ; CHECK: # %catch.body 37 ; CHECK: .seh_endprolog 38 ; CHECK: leaq [[Exit]](%rip), %rax 39 ; CHECK: retq # CATCHRET 40 41 ; REMARKS: Pass: shrink-wrap 42 ; REMARKS-NEXT: Name: UnsupportedEHFunclets 43 ; REMARKS-NEXT: Function: catchret 44 ; REMARKS-NEXT: Args: 45 ; REMARKS-NEXT: - String: EH Funclets are not supported yet. 46 47 ; test @setjmp - similar to @catchret, but the MBB in question 48 ; is the one generated when the setjmp's block is split 49 50 @buf = internal global [5 x i8*] zeroinitializer 51 declare i8* @llvm.frameaddress(i32) nounwind readnone 52 declare i8* @llvm.stacksave() nounwind 53 declare i32 @llvm.eh.sjlj.setjmp(i8*) nounwind 54 declare void @llvm.eh.sjlj.longjmp(i8*) nounwind 55 56 define void @setjmp(i1 %b) nounwind { 57 entry: 58 br i1 %b, label %early_out, label %sj 59 early_out: 60 ret void 61 sj: 62 %fp = call i8* @llvm.frameaddress(i32 0) 63 store i8* %fp, i8** getelementptr inbounds ([5 x i8*], [5 x i8*]* @buf, i64 0, i64 0), align 16 64 %sp = call i8* @llvm.stacksave() 65 store i8* %sp, i8** getelementptr inbounds ([5 x i8*], [5 x i8*]* @buf, i64 0, i64 2), align 16 66 call i32 @llvm.eh.sjlj.setjmp(i8* bitcast ([5 x i8*]* @buf to i8*)) 67 ret void 68 } 69 ; CHECK-LABEL: setjmp: # @setjmp 70 ; CHECK: # %sj 71 ; CHECK: leaq [[Label:\..+]](%rip), %[[Reg:.+]]{{$}} 72 ; CHECK-NEXT: movq %[[Reg]], buf 73 ; CHECK: {{^}}[[Label]]: # Block address taken 74 ; CHECK-NEXT: # %sj 75
