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; RUN: opt -codegenprepare -S < %s | FileCheck %s
; The following target lines are needed for the test to exercise what it should.
; Without these lines, CodeGenPrepare does not try to sink the bitcasts.
target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-windows-msvc"
declare i32 @__CxxFrameHandler3(...)
declare void @f()
declare void @g(i8*)
; CodeGenPrepare will want to sink these bitcasts, but it selects the catchpad
; blocks as the place to which the bitcast should be sunk. Since catchpads
; do not allow non-phi instructions before the terminator, this isn't possible.
; CHECK-LABEL: @test(
define void @test(i32* %addr) personality i32 (...)* @__CxxFrameHandler3 {
; CHECK: entry:
; CHECK-NEXT: %x = getelementptr i32, i32* %addr, i32 1
; CHECK-NEXT: %p1 = bitcast i32* %x to i8*
entry:
%x = getelementptr i32, i32* %addr, i32 1
%p1 = bitcast i32* %x to i8*
invoke void @f()
to label %invoke.cont unwind label %catch1
; CHECK: invoke.cont:
; CHECK-NEXT: %y = getelementptr i32, i32* %addr, i32 2
; CHECK-NEXT: %p2 = bitcast i32* %y to i8*
invoke.cont:
%y = getelementptr i32, i32* %addr, i32 2
%p2 = bitcast i32* %y to i8*
invoke void @f()
to label %done unwind label %catch2
done:
ret void
catch1:
%cp1 = catchpad [] to label %catch.dispatch unwind label %catchend1
catch2:
%cp2 = catchpad [] to label %catch.dispatch unwind label %catchend2
; CHECK: catch.dispatch:
; CHECK-NEXT: %p = phi i8* [ %p1, %catch1 ], [ %p2, %catch2 ]
catch.dispatch:
%p = phi i8* [ %p1, %catch1 ], [ %p2, %catch2 ]
call void @g(i8* %p)
unreachable
catchend1:
catchendpad unwind to caller
catchend2:
catchendpad unwind to caller
}
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