1 ; RUN: opt -instcombine -S < %s | FileCheck %s 2 target triple = "x86_64-pc-windows-msvc" 3 4 define i1 @test1(i8* %p) personality i32 (...)* @__CxxFrameHandler3 { 5 entry: 6 %a = getelementptr i8, i8* %p, i64 1 7 invoke void @may_throw() 8 to label %invoke.cont unwind label %catch.dispatch 9 10 invoke.cont: 11 %b = getelementptr inbounds i8, i8* %a, i64 1 12 invoke void @may_throw() 13 to label %exit unwind label %catch.dispatch 14 15 catch.dispatch: 16 %c = phi i8* [ %b, %invoke.cont ], [ %a, %entry ] 17 %tmp1 = catchswitch within none [label %catch] unwind to caller 18 19 catch: 20 %tmp2 = catchpad within %tmp1 [i8* null, i32 64, i8* null] 21 catchret from %tmp2 to label %exit 22 23 exit: 24 %d = phi i8* [ %a, %invoke.cont ], [ %c, %catch ] 25 %cmp = icmp eq i8* %d, %a 26 ret i1 %cmp 27 } 28 29 ; CHECK-LABEL: define i1 @test1( 30 ; CHECK: %[[gep_a:.*]] = getelementptr i8, i8* %p, i64 1 31 ; CHECK: %[[gep_b:.*]] = getelementptr inbounds i8, i8* %p, i64 2 32 ; CHECK: phi i8* [ %[[gep_b]], {{.*}} ], [ %[[gep_a]], {{.*}} ] 33 ; CHECK: %tmp1 = catchswitch within none [label %catch] unwind to caller 34 35 declare void @may_throw() 36 37 declare i32 @__CxxFrameHandler3(...) 38
