1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3 2; RUN: opt -S -passes='require<profile-summary>,function(codegenprepare)' %s -o - | FileCheck %s 3 4target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 5target triple = "x86_64-unknown-linux-gnu" 6 7%struct.Blub = type { i8, i8, ptr } 8 9@indirectBrPtr = external hidden global ptr 10 11define ptr @testFunc(ptr readonly %array, i1 %skip) { 12; CHECK-LABEL: define ptr @testFunc( 13; CHECK-SAME: ptr readonly [[ARRAY:%.*]], i1 [[SKIP:%.*]]) { 14; CHECK-NEXT: entry: 15; CHECK-NEXT: br i1 [[SKIP]], label [[LOOPHEADER:%.*]], label [[ENDBLOCK_CLONE:%.*]] 16; CHECK: loopHeader: 17; CHECK-NEXT: [[CURRENTARRAYELEMENT:%.*]] = phi ptr [ [[ARRAY]], [[ENTRY:%.*]] ], [ [[NEXTARRAYELEMENT:%.*]], [[LOOPFOOTER:%.*]] ] 18; CHECK-NEXT: [[ELEMENTVALUEPTR:%.*]] = getelementptr inbounds i8, ptr [[CURRENTARRAYELEMENT]], i64 1 19; CHECK-NEXT: [[ELEMENTVALUE:%.*]] = load i8, ptr [[ELEMENTVALUEPTR]], align 1 20; CHECK-NEXT: indirectbr ptr @indirectBrPtr, [label [[LOOPFOOTER]], label %endBlock] 21; CHECK: loopFooter: 22; CHECK-NEXT: [[ISGOODVALUE:%.*]] = icmp eq i8 [[ELEMENTVALUE]], 0 23; CHECK-NEXT: [[NEXTARRAYELEMENT]] = getelementptr inbounds [[STRUCT_BLUB:%.*]], ptr [[CURRENTARRAYELEMENT]], i64 1 24; CHECK-NEXT: br i1 [[ISGOODVALUE]], label [[LOOPHEADER]], label [[ENDBLOCK_CLONE]] 25; CHECK: endBlock: 26; CHECK-NEXT: br label [[DOTSPLIT:%.*]] 27; CHECK: .split: 28; CHECK-NEXT: [[MERGE:%.*]] = phi ptr [ [[ELEMENTVALUEPTR]], [[ENDBLOCK:%.*]] ], [ [[RETVAL_CLONE:%.*]], [[ENDBLOCK_CLONE]] ] 29; CHECK-NEXT: ret ptr [[MERGE]] 30; CHECK: endBlock.clone: 31; CHECK-NEXT: [[RETVAL_CLONE]] = phi ptr [ [[ARRAY]], [[ENTRY]] ], [ [[ELEMENTVALUEPTR]], [[LOOPFOOTER]] ] 32; CHECK-NEXT: br label [[DOTSPLIT]] 33; 34entry: 35 br i1 %skip, label %loopHeader, label %endBlock 36 37loopHeader: 38 %currentArrayElement = phi ptr [ %array, %entry ], [ %nextArrayElement, %loopFooter ] 39 %elementValuePtr = getelementptr inbounds i8, ptr %currentArrayElement, i64 1 40 %elementValue = load i8, ptr %elementValuePtr, align 1 41 indirectbr ptr @indirectBrPtr, [label %loopFooter, label %endBlock] 42 43loopFooter: 44 %isGoodValue = icmp eq i8 %elementValue, 0 45 %nextArrayElement = getelementptr inbounds %struct.Blub, ptr %currentArrayElement, i64 1 46 br i1 %isGoodValue, label %loopHeader, label %endBlock 47 48endBlock: 49 %retVal = phi ptr [ %array, %entry ], [ %elementValuePtr, %loopFooter ], [ %elementValuePtr, %loopHeader ] 50 ret ptr %retVal 51} 52