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| ; RUN: opt -instcombine -S < %s | FileCheck %s
target triple = "x86_64-pc-windows-msvc"
define i1 @test1(i8* %p) personality i32 (...)* @__CxxFrameHandler3 {
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
}
; CHECK-LABEL: define i1 @test1(
; CHECK: %[[gep_a:.*]] = getelementptr i8, i8* %p, i64 1
; CHECK: %[[gep_b:.*]] = getelementptr inbounds i8, i8* %p, i64 2
; CHECK: phi i8* [ %[[gep_b]], {{.*}} ], [ %[[gep_a]], {{.*}} ]
; CHECK: %tmp1 = catchswitch within none [label %catch] unwind to caller
declare void @may_throw()
declare i32 @__CxxFrameHandler3(...)
|