You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
38 lines
1.1 KiB
38 lines
1.1 KiB
; 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(...)
|