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