; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -indvars -S "-data-layout=e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" | FileCheck -check-prefix=PTR64 %s ; RUN: opt < %s -indvars -S "-data-layout=e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32" | FileCheck -check-prefix=PTR32 %s ; ; PR11279: Assertion !IVLimit->getType()->isPointerTy() ; ; Test LinearFunctionTestReplace of a pointer-type loop counter. Note ; that BECount may or may not be a pointer type. A pointer type ; BECount doesn't really make sense, but that's what falls out of ; SCEV. Since it's an i8*, it has unit stride so we never adjust the ; SCEV expression in a way that would convert it to an integer type. define i8 @testnullptrptr(i8* %buf, i8* %end) nounwind { ; PTR64-LABEL: @testnullptrptr( ; PTR64-NEXT: br label [[LOOPGUARD:%.*]] ; PTR64: loopguard: ; PTR64-NEXT: [[GUARD:%.*]] = icmp ult i8* null, [[END:%.*]] ; PTR64-NEXT: br i1 [[GUARD]], label [[PREHEADER:%.*]], label [[EXIT:%.*]] ; PTR64: preheader: ; PTR64-NEXT: br label [[LOOP:%.*]] ; PTR64: loop: ; PTR64-NEXT: [[P_01_US_US:%.*]] = phi i8* [ null, [[PREHEADER]] ], [ [[GEP:%.*]], [[LOOP]] ] ; PTR64-NEXT: [[GEP]] = getelementptr inbounds i8, i8* [[P_01_US_US]], i64 1 ; PTR64-NEXT: [[SNEXT:%.*]] = load i8, i8* [[GEP]], align 1 ; PTR64-NEXT: [[EXITCOND:%.*]] = icmp ne i8* [[GEP]], [[END]] ; PTR64-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]] ; PTR64: exit.loopexit: ; PTR64-NEXT: [[SNEXT_LCSSA:%.*]] = phi i8 [ [[SNEXT]], [[LOOP]] ] ; PTR64-NEXT: br label [[EXIT]] ; PTR64: exit: ; PTR64-NEXT: [[RET:%.*]] = phi i8 [ 0, [[LOOPGUARD]] ], [ [[SNEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; PTR64-NEXT: ret i8 [[RET]] ; ; PTR32-LABEL: @testnullptrptr( ; PTR32-NEXT: br label [[LOOPGUARD:%.*]] ; PTR32: loopguard: ; PTR32-NEXT: [[GUARD:%.*]] = icmp ult i8* null, [[END:%.*]] ; PTR32-NEXT: br i1 [[GUARD]], label [[PREHEADER:%.*]], label [[EXIT:%.*]] ; PTR32: preheader: ; PTR32-NEXT: br label [[LOOP:%.*]] ; PTR32: loop: ; PTR32-NEXT: [[P_01_US_US:%.*]] = phi i8* [ null, [[PREHEADER]] ], [ [[GEP:%.*]], [[LOOP]] ] ; PTR32-NEXT: [[GEP]] = getelementptr inbounds i8, i8* [[P_01_US_US]], i64 1 ; PTR32-NEXT: [[SNEXT:%.*]] = load i8, i8* [[GEP]], align 1 ; PTR32-NEXT: [[EXITCOND:%.*]] = icmp ne i8* [[GEP]], [[END]] ; PTR32-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]] ; PTR32: exit.loopexit: ; PTR32-NEXT: [[SNEXT_LCSSA:%.*]] = phi i8 [ [[SNEXT]], [[LOOP]] ] ; PTR32-NEXT: br label [[EXIT]] ; PTR32: exit: ; PTR32-NEXT: [[RET:%.*]] = phi i8 [ 0, [[LOOPGUARD]] ], [ [[SNEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; PTR32-NEXT: ret i8 [[RET]] ; br label %loopguard loopguard: %guard = icmp ult i8* null, %end br i1 %guard, label %preheader, label %exit preheader: br label %loop loop: %p.01.us.us = phi i8* [ null, %preheader ], [ %gep, %loop ] %s = phi i8 [0, %preheader], [%snext, %loop] %gep = getelementptr inbounds i8, i8* %p.01.us.us, i64 1 %snext = load i8, i8* %gep %cmp = icmp ult i8* %gep, %end br i1 %cmp, label %loop, label %exit exit: %ret = phi i8 [0, %loopguard], [%snext, %loop] ret i8 %ret } define i8 @testptrptr(i8* %buf, i8* %end) nounwind { ; PTR64-LABEL: @testptrptr( ; PTR64-NEXT: br label [[LOOPGUARD:%.*]] ; PTR64: loopguard: ; PTR64-NEXT: [[GUARD:%.*]] = icmp ult i8* [[BUF:%.*]], [[END:%.*]] ; PTR64-NEXT: br i1 [[GUARD]], label [[PREHEADER:%.*]], label [[EXIT:%.*]] ; PTR64: preheader: ; PTR64-NEXT: br label [[LOOP:%.*]] ; PTR64: loop: ; PTR64-NEXT: [[P_01_US_US:%.*]] = phi i8* [ [[BUF]], [[PREHEADER]] ], [ [[GEP:%.*]], [[LOOP]] ] ; PTR64-NEXT: [[GEP]] = getelementptr inbounds i8, i8* [[P_01_US_US]], i64 1 ; PTR64-NEXT: [[SNEXT:%.*]] = load i8, i8* [[GEP]], align 1 ; PTR64-NEXT: [[EXITCOND:%.*]] = icmp ne i8* [[GEP]], [[END]] ; PTR64-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]] ; PTR64: exit.loopexit: ; PTR64-NEXT: [[SNEXT_LCSSA:%.*]] = phi i8 [ [[SNEXT]], [[LOOP]] ] ; PTR64-NEXT: br label [[EXIT]] ; PTR64: exit: ; PTR64-NEXT: [[RET:%.*]] = phi i8 [ 0, [[LOOPGUARD]] ], [ [[SNEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; PTR64-NEXT: ret i8 [[RET]] ; ; PTR32-LABEL: @testptrptr( ; PTR32-NEXT: br label [[LOOPGUARD:%.*]] ; PTR32: loopguard: ; PTR32-NEXT: [[GUARD:%.*]] = icmp ult i8* [[BUF:%.*]], [[END:%.*]] ; PTR32-NEXT: br i1 [[GUARD]], label [[PREHEADER:%.*]], label [[EXIT:%.*]] ; PTR32: preheader: ; PTR32-NEXT: br label [[LOOP:%.*]] ; PTR32: loop: ; PTR32-NEXT: [[P_01_US_US:%.*]] = phi i8* [ [[BUF]], [[PREHEADER]] ], [ [[GEP:%.*]], [[LOOP]] ] ; PTR32-NEXT: [[GEP]] = getelementptr inbounds i8, i8* [[P_01_US_US]], i64 1 ; PTR32-NEXT: [[SNEXT:%.*]] = load i8, i8* [[GEP]], align 1 ; PTR32-NEXT: [[EXITCOND:%.*]] = icmp ne i8* [[GEP]], [[END]] ; PTR32-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]] ; PTR32: exit.loopexit: ; PTR32-NEXT: [[SNEXT_LCSSA:%.*]] = phi i8 [ [[SNEXT]], [[LOOP]] ] ; PTR32-NEXT: br label [[EXIT]] ; PTR32: exit: ; PTR32-NEXT: [[RET:%.*]] = phi i8 [ 0, [[LOOPGUARD]] ], [ [[SNEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; PTR32-NEXT: ret i8 [[RET]] ; br label %loopguard loopguard: %guard = icmp ult i8* %buf, %end br i1 %guard, label %preheader, label %exit preheader: br label %loop loop: %p.01.us.us = phi i8* [ %buf, %preheader ], [ %gep, %loop ] %s = phi i8 [0, %preheader], [%snext, %loop] %gep = getelementptr inbounds i8, i8* %p.01.us.us, i64 1 %snext = load i8, i8* %gep %cmp = icmp ult i8* %gep, %end br i1 %cmp, label %loop, label %exit exit: %ret = phi i8 [0, %loopguard], [%snext, %loop] ret i8 %ret } define i8 @testnullptrint(i8* %buf, i8* %end) nounwind { ; PTR64-LABEL: @testnullptrint( ; PTR64-NEXT: br label [[LOOPGUARD:%.*]] ; PTR64: loopguard: ; PTR64-NEXT: [[BI:%.*]] = ptrtoint i8* [[BUF:%.*]] to i32 ; PTR64-NEXT: [[EI:%.*]] = ptrtoint i8* [[END:%.*]] to i32 ; PTR64-NEXT: [[CNT:%.*]] = sub i32 [[EI]], [[BI]] ; PTR64-NEXT: [[GUARD:%.*]] = icmp ult i32 0, [[CNT]] ; PTR64-NEXT: br i1 [[GUARD]], label [[PREHEADER:%.*]], label [[EXIT:%.*]] ; PTR64: preheader: ; PTR64-NEXT: [[TMP1:%.*]] = add i32 [[EI]], -1 ; PTR64-NEXT: [[TMP2:%.*]] = sub i32 [[TMP1]], [[BI]] ; PTR64-NEXT: [[TMP3:%.*]] = zext i32 [[TMP2]] to i64 ; PTR64-NEXT: [[TMP4:%.*]] = add nuw nsw i64 [[TMP3]], 1 ; PTR64-NEXT: [[TMP5:%.*]] = inttoptr i64 [[TMP4]] to i8* ; PTR64-NEXT: br label [[LOOP:%.*]] ; PTR64: loop: ; PTR64-NEXT: [[P_01_US_US:%.*]] = phi i8* [ null, [[PREHEADER]] ], [ [[GEP:%.*]], [[LOOP]] ] ; PTR64-NEXT: [[GEP]] = getelementptr inbounds i8, i8* [[P_01_US_US]], i64 1 ; PTR64-NEXT: [[SNEXT:%.*]] = load i8, i8* [[GEP]], align 1 ; PTR64-NEXT: [[EXITCOND:%.*]] = icmp ne i8* [[GEP]], [[TMP5]] ; PTR64-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]] ; PTR64: exit.loopexit: ; PTR64-NEXT: [[SNEXT_LCSSA:%.*]] = phi i8 [ [[SNEXT]], [[LOOP]] ] ; PTR64-NEXT: br label [[EXIT]] ; PTR64: exit: ; PTR64-NEXT: [[RET:%.*]] = phi i8 [ 0, [[LOOPGUARD]] ], [ [[SNEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; PTR64-NEXT: ret i8 [[RET]] ; ; PTR32-LABEL: @testnullptrint( ; PTR32-NEXT: br label [[LOOPGUARD:%.*]] ; PTR32: loopguard: ; PTR32-NEXT: [[BI:%.*]] = ptrtoint i8* [[BUF:%.*]] to i32 ; PTR32-NEXT: [[EI:%.*]] = ptrtoint i8* [[END:%.*]] to i32 ; PTR32-NEXT: [[CNT:%.*]] = sub i32 [[EI]], [[BI]] ; PTR32-NEXT: [[CNT1:%.*]] = inttoptr i32 [[CNT]] to i8* ; PTR32-NEXT: [[GUARD:%.*]] = icmp ult i32 0, [[CNT]] ; PTR32-NEXT: br i1 [[GUARD]], label [[PREHEADER:%.*]], label [[EXIT:%.*]] ; PTR32: preheader: ; PTR32-NEXT: br label [[LOOP:%.*]] ; PTR32: loop: ; PTR32-NEXT: [[P_01_US_US:%.*]] = phi i8* [ null, [[PREHEADER]] ], [ [[GEP:%.*]], [[LOOP]] ] ; PTR32-NEXT: [[GEP]] = getelementptr inbounds i8, i8* [[P_01_US_US]], i64 1 ; PTR32-NEXT: [[SNEXT:%.*]] = load i8, i8* [[GEP]], align 1 ; PTR32-NEXT: [[EXITCOND:%.*]] = icmp ne i8* [[GEP]], [[CNT1]] ; PTR32-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]] ; PTR32: exit.loopexit: ; PTR32-NEXT: [[SNEXT_LCSSA:%.*]] = phi i8 [ [[SNEXT]], [[LOOP]] ] ; PTR32-NEXT: br label [[EXIT]] ; PTR32: exit: ; PTR32-NEXT: [[RET:%.*]] = phi i8 [ 0, [[LOOPGUARD]] ], [ [[SNEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; PTR32-NEXT: ret i8 [[RET]] ; br label %loopguard loopguard: %bi = ptrtoint i8* %buf to i32 %ei = ptrtoint i8* %end to i32 %cnt = sub i32 %ei, %bi %guard = icmp ult i32 0, %cnt br i1 %guard, label %preheader, label %exit preheader: br label %loop loop: %p.01.us.us = phi i8* [ null, %preheader ], [ %gep, %loop ] %iv = phi i32 [ 0, %preheader ], [ %ivnext, %loop ] %s = phi i8 [0, %preheader], [%snext, %loop] %gep = getelementptr inbounds i8, i8* %p.01.us.us, i64 1 %snext = load i8, i8* %gep %ivnext = add i32 %iv, 1 %cmp = icmp ult i32 %ivnext, %cnt br i1 %cmp, label %loop, label %exit exit: %ret = phi i8 [0, %loopguard], [%snext, %loop] ret i8 %ret } define i8 @testptrint(i8* %buf, i8* %end) nounwind { ; PTR64-LABEL: @testptrint( ; PTR64-NEXT: br label [[LOOPGUARD:%.*]] ; PTR64: loopguard: ; PTR64-NEXT: [[BI:%.*]] = ptrtoint i8* [[BUF:%.*]] to i32 ; PTR64-NEXT: [[EI:%.*]] = ptrtoint i8* [[END:%.*]] to i32 ; PTR64-NEXT: [[CNT:%.*]] = sub i32 [[EI]], [[BI]] ; PTR64-NEXT: [[GUARD:%.*]] = icmp ult i32 [[BI]], [[CNT]] ; PTR64-NEXT: br i1 [[GUARD]], label [[PREHEADER:%.*]], label [[EXIT:%.*]] ; PTR64: preheader: ; PTR64-NEXT: br label [[LOOP:%.*]] ; PTR64: loop: ; PTR64-NEXT: [[P_01_US_US:%.*]] = phi i8* [ [[BUF]], [[PREHEADER]] ], [ [[GEP:%.*]], [[LOOP]] ] ; PTR64-NEXT: [[IV:%.*]] = phi i32 [ [[BI]], [[PREHEADER]] ], [ [[IVNEXT:%.*]], [[LOOP]] ] ; PTR64-NEXT: [[GEP]] = getelementptr inbounds i8, i8* [[P_01_US_US]], i64 1 ; PTR64-NEXT: [[SNEXT:%.*]] = load i8, i8* [[GEP]], align 1 ; PTR64-NEXT: [[IVNEXT]] = add nuw i32 [[IV]], 1 ; PTR64-NEXT: [[EXITCOND:%.*]] = icmp ne i32 [[IVNEXT]], [[CNT]] ; PTR64-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]] ; PTR64: exit.loopexit: ; PTR64-NEXT: [[SNEXT_LCSSA:%.*]] = phi i8 [ [[SNEXT]], [[LOOP]] ] ; PTR64-NEXT: br label [[EXIT]] ; PTR64: exit: ; PTR64-NEXT: [[RET:%.*]] = phi i8 [ 0, [[LOOPGUARD]] ], [ [[SNEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; PTR64-NEXT: ret i8 [[RET]] ; ; PTR32-LABEL: @testptrint( ; PTR32-NEXT: br label [[LOOPGUARD:%.*]] ; PTR32: loopguard: ; PTR32-NEXT: [[BI:%.*]] = ptrtoint i8* [[BUF:%.*]] to i32 ; PTR32-NEXT: [[EI:%.*]] = ptrtoint i8* [[END:%.*]] to i32 ; PTR32-NEXT: [[CNT:%.*]] = sub i32 [[EI]], [[BI]] ; PTR32-NEXT: [[GUARD:%.*]] = icmp ult i32 [[BI]], [[CNT]] ; PTR32-NEXT: br i1 [[GUARD]], label [[PREHEADER:%.*]], label [[EXIT:%.*]] ; PTR32: preheader: ; PTR32-NEXT: br label [[LOOP:%.*]] ; PTR32: loop: ; PTR32-NEXT: [[P_01_US_US:%.*]] = phi i8* [ [[BUF]], [[PREHEADER]] ], [ [[GEP:%.*]], [[LOOP]] ] ; PTR32-NEXT: [[IV:%.*]] = phi i32 [ [[BI]], [[PREHEADER]] ], [ [[IVNEXT:%.*]], [[LOOP]] ] ; PTR32-NEXT: [[GEP]] = getelementptr inbounds i8, i8* [[P_01_US_US]], i64 1 ; PTR32-NEXT: [[SNEXT:%.*]] = load i8, i8* [[GEP]], align 1 ; PTR32-NEXT: [[IVNEXT]] = add nuw i32 [[IV]], 1 ; PTR32-NEXT: [[EXITCOND:%.*]] = icmp ne i32 [[IVNEXT]], [[CNT]] ; PTR32-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]] ; PTR32: exit.loopexit: ; PTR32-NEXT: [[SNEXT_LCSSA:%.*]] = phi i8 [ [[SNEXT]], [[LOOP]] ] ; PTR32-NEXT: br label [[EXIT]] ; PTR32: exit: ; PTR32-NEXT: [[RET:%.*]] = phi i8 [ 0, [[LOOPGUARD]] ], [ [[SNEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; PTR32-NEXT: ret i8 [[RET]] ; br label %loopguard loopguard: %bi = ptrtoint i8* %buf to i32 %ei = ptrtoint i8* %end to i32 %cnt = sub i32 %ei, %bi %guard = icmp ult i32 %bi, %cnt br i1 %guard, label %preheader, label %exit preheader: br label %loop loop: %p.01.us.us = phi i8* [ %buf, %preheader ], [ %gep, %loop ] %iv = phi i32 [ %bi, %preheader ], [ %ivnext, %loop ] %s = phi i8 [0, %preheader], [%snext, %loop] %gep = getelementptr inbounds i8, i8* %p.01.us.us, i64 1 %snext = load i8, i8* %gep %ivnext = add i32 %iv, 1 %cmp = icmp ult i32 %ivnext, %cnt br i1 %cmp, label %loop, label %exit exit: %ret = phi i8 [0, %loopguard], [%snext, %loop] ret i8 %ret } ; IV and BECount have two different pointer types here. define void @testnullptr([512 x i8]* %base) nounwind { ; PTR64-LABEL: @testnullptr( ; PTR64-NEXT: entry: ; PTR64-NEXT: [[ADD_PTR1603:%.*]] = getelementptr [512 x i8], [512 x i8]* [[BASE:%.*]], i64 0, i64 512 ; PTR64-NEXT: br label [[PREHEADER:%.*]] ; PTR64: preheader: ; PTR64-NEXT: [[CMP1604192:%.*]] = icmp ult i8* undef, [[ADD_PTR1603]] ; PTR64-NEXT: br i1 [[CMP1604192]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_END1609:%.*]] ; PTR64: for.body.preheader: ; PTR64-NEXT: br label [[FOR_BODY:%.*]] ; PTR64: for.body: ; PTR64-NEXT: [[R_17193:%.*]] = phi i8* [ [[INCDEC_PTR1608:%.*]], [[FOR_BODY]] ], [ null, [[FOR_BODY_PREHEADER]] ] ; PTR64-NEXT: [[INCDEC_PTR1608]] = getelementptr i8, i8* [[R_17193]], i64 1 ; PTR64-NEXT: [[CMP1604:%.*]] = icmp ult i8* [[INCDEC_PTR1608]], [[ADD_PTR1603]] ; PTR64-NEXT: br i1 [[CMP1604]], label [[FOR_BODY]], label [[FOR_END1609_LOOPEXIT:%.*]] ; PTR64: for.end1609.loopexit: ; PTR64-NEXT: br label [[FOR_END1609]] ; PTR64: for.end1609: ; PTR64-NEXT: unreachable ; ; PTR32-LABEL: @testnullptr( ; PTR32-NEXT: entry: ; PTR32-NEXT: [[ADD_PTR1603:%.*]] = getelementptr [512 x i8], [512 x i8]* [[BASE:%.*]], i64 0, i64 512 ; PTR32-NEXT: br label [[PREHEADER:%.*]] ; PTR32: preheader: ; PTR32-NEXT: [[CMP1604192:%.*]] = icmp ult i8* undef, [[ADD_PTR1603]] ; PTR32-NEXT: br i1 [[CMP1604192]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_END1609:%.*]] ; PTR32: for.body.preheader: ; PTR32-NEXT: br label [[FOR_BODY:%.*]] ; PTR32: for.body: ; PTR32-NEXT: [[R_17193:%.*]] = phi i8* [ [[INCDEC_PTR1608:%.*]], [[FOR_BODY]] ], [ null, [[FOR_BODY_PREHEADER]] ] ; PTR32-NEXT: [[INCDEC_PTR1608]] = getelementptr i8, i8* [[R_17193]], i64 1 ; PTR32-NEXT: [[CMP1604:%.*]] = icmp ult i8* [[INCDEC_PTR1608]], [[ADD_PTR1603]] ; PTR32-NEXT: br i1 [[CMP1604]], label [[FOR_BODY]], label [[FOR_END1609_LOOPEXIT:%.*]] ; PTR32: for.end1609.loopexit: ; PTR32-NEXT: br label [[FOR_END1609]] ; PTR32: for.end1609: ; PTR32-NEXT: unreachable ; entry: %add.ptr1603 = getelementptr [512 x i8], [512 x i8]* %base, i64 0, i64 512 br label %preheader preheader: %cmp1604192 = icmp ult i8* undef, %add.ptr1603 br i1 %cmp1604192, label %for.body, label %for.end1609 for.body: %r.17193 = phi i8* [ %incdec.ptr1608, %for.body ], [ null, %preheader ] %incdec.ptr1608 = getelementptr i8, i8* %r.17193, i64 1 %cmp1604 = icmp ult i8* %incdec.ptr1608, %add.ptr1603 br i1 %cmp1604, label %for.body, label %for.end1609 for.end1609: unreachable }