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