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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -instcombine -S < %s | FileCheck %s
target triple = "x86_64-pc-windows-msvc"
define i1 @test1(i8* %p) personality i32 (...)* @__CxxFrameHandler3 {
; CHECK-LABEL: @test1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = getelementptr i8, i8* [[P:%.*]], i64 1
; CHECK-NEXT: invoke void @may_throw()
; CHECK-NEXT: to label [[INVOKE_CONT:%.*]] unwind label [[CATCH_DISPATCH:%.*]]
; CHECK: invoke.cont:
; CHECK-NEXT: [[B:%.*]] = getelementptr i8, i8* [[P]], i64 2
; CHECK-NEXT: invoke void @may_throw()
; CHECK-NEXT: to label [[EXIT:%.*]] unwind label [[CATCH_DISPATCH]]
; CHECK: catch.dispatch:
; CHECK-NEXT: [[C:%.*]] = phi i8* [ [[B]], [[INVOKE_CONT]] ], [ [[A]], [[ENTRY:%.*]] ]
; CHECK-NEXT: [[TMP1:%.*]] = catchswitch within none [label %catch] unwind to caller
; CHECK: catch:
; CHECK-NEXT: [[TMP2:%.*]] = catchpad within [[TMP1]] [i8* null, i32 64, i8* null]
; CHECK-NEXT: catchret from [[TMP2]] to label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: [[D:%.*]] = phi i8* [ [[A]], [[INVOKE_CONT]] ], [ [[C]], [[CATCH:%.*]] ]
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8* [[D]], [[A]]
; CHECK-NEXT: ret i1 [[CMP]]
;
entry:
%a = getelementptr i8, i8* %p, i64 1
invoke void @may_throw()
to label %invoke.cont unwind label %catch.dispatch
invoke.cont:
%b = getelementptr inbounds i8, i8* %a, i64 1
invoke void @may_throw()
to label %exit unwind label %catch.dispatch
catch.dispatch:
%c = phi i8* [ %b, %invoke.cont ], [ %a, %entry ]
%tmp1 = catchswitch within none [label %catch] unwind to caller
catch:
%tmp2 = catchpad within %tmp1 [i8* null, i32 64, i8* null]
catchret from %tmp2 to label %exit
exit:
%d = phi i8* [ %a, %invoke.cont ], [ %c, %catch ]
%cmp = icmp eq i8* %d, %a
ret i1 %cmp
}
declare void @may_throw()
declare i32 @__CxxFrameHandler3(...)
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