| ; 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(...) |
