forked from OSchip/llvm-project
[SCEVExpander] Simplify pointer overflow check
This is a followup to D104662 to generate slightly nicer code for pointer overflow checks. Bypass expandAddToGEP and instead explicitly generate i8 GEPs. This saves some bitcasts and negates the value in a more obvious way. In particular, this prevents SCEV from looking through the umul.with.overflow, same as in the integer case. The wrapping-pointer-ni.ll test deserves a comment: Previously, this generated a typed GEP which used the umulo argument rather than the multiplication result. This results in more compact IR in that case, but effectively does the multiplication twice, the second one is just hidden in the GEP. Reusing the umulo result seems pretty reasonable to me. Differential Revision: https://reviews.llvm.org/D109093
This commit is contained in:
Nikita Popov
parent
ad2f94f398
commit
c86e1ce73b
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@ -2490,12 +2490,11 @@ Value *SCEVExpander::generateOverflowCheck(const SCEVAddRecExpr *AR,
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// Start - |Step| * Backedge > Start
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Value *Add = nullptr, *Sub = nullptr;
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if (PointerType *ARPtrTy = dyn_cast<PointerType>(ARTy)) {
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const SCEV *MulS = SE.getSCEV(MulV);
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const SCEV *NegMulS = SE.getNegativeSCEV(MulS);
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Add = Builder.CreateBitCast(expandAddToGEP(MulS, ARPtrTy, Ty, StartValue),
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ARPtrTy);
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Sub = Builder.CreateBitCast(
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expandAddToGEP(NegMulS, ARPtrTy, Ty, StartValue), ARPtrTy);
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StartValue = InsertNoopCastOfTo(
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StartValue, Builder.getInt8PtrTy(ARPtrTy->getAddressSpace()));
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Value *NegMulV = Builder.CreateNeg(MulV);
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Add = Builder.CreateGEP(Builder.getInt8Ty(), StartValue, MulV);
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Sub = Builder.CreateGEP(Builder.getInt8Ty(), StartValue, NegMulV);
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} else {
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Add = Builder.CreateAdd(StartValue, MulV);
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Sub = Builder.CreateSub(StartValue, MulV);
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@ -17,10 +17,11 @@ define void @"japi1_align!_9477"(%jl_value_t addrspace(10)** %arg) {
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; LV: [[OFMul:%[^ ]*]] = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 4, i64 [[Step:%[^ ]*]])
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; LV-NEXT: [[OFMulResult:%[^ ]*]] = extractvalue { i64, i1 } [[OFMul]], 0
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; LV-NEXT: [[OFMulOverflow:%[^ ]*]] = extractvalue { i64, i1 } [[OFMul]], 1
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; LV-NEXT: [[PosGEP:%[^ ]*]] = getelementptr i32, i32 addrspace(13)* [[Base:%[^ ]*]], i64 [[Step]]
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; LV-NEXT: [[NegGEP:%[^ ]*]] = getelementptr i32, i32 addrspace(13)* [[Base]], i64 [[NegStep:%[^ ]*]]
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; LV-NEXT: icmp ugt i32 addrspace(13)* [[NegGEP]], [[Base]]
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; LV-NEXT: icmp ult i32 addrspace(13)* [[PosGEP]], [[Base]]
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; LV: [[OFNegMulResult:%[^ ]*]] = sub i64 0, [[OFMulResult]]
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; LV-NEXT: [[PosGEP:%[^ ]*]] = getelementptr i8, i8 addrspace(13)* [[Base:%[^ ]*]], i64 [[OFMulResult]]
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; LV-NEXT: [[NegGEP:%[^ ]*]] = getelementptr i8, i8 addrspace(13)* [[Base]], i64 [[OFNegMulResult]]
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; LV-NEXT: icmp ugt i8 addrspace(13)* [[NegGEP]], [[Base]]
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; LV-NEXT: icmp ult i8 addrspace(13)* [[PosGEP]], [[Base]]
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; LV-NOT: inttoptr
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; LV-NOT: ptrtoint
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top:
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@ -29,18 +29,15 @@ define void @f(i32* noalias %a, i32* noalias %b, i32* noalias %c, i32* noalias %
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; CHECK-NEXT: [[MUL2:%.*]] = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 8, i64 [[TMP0]])
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; CHECK-NEXT: [[MUL_RESULT3:%.*]] = extractvalue { i64, i1 } [[MUL2]], 0
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; CHECK-NEXT: [[MUL_OVERFLOW4:%.*]] = extractvalue { i64, i1 } [[MUL2]], 1
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; CHECK-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, i8* [[A5]], i64 [[MUL_RESULT3]]
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; CHECK-NEXT: [[TMP11:%.*]] = bitcast i8* [[UGLYGEP]] to i32*
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; CHECK-NEXT: [[TMP12:%.*]] = sub i64 [[MUL_RESULT3]], -8
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; CHECK-NEXT: [[TMP13:%.*]] = sub i64 8, [[TMP12]]
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; CHECK-NEXT: [[UGLYGEP6:%.*]] = getelementptr i8, i8* [[A5]], i64 [[TMP13]]
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; CHECK-NEXT: [[TMP14:%.*]] = bitcast i8* [[UGLYGEP6]] to i32*
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; CHECK-NEXT: [[TMP15:%.*]] = icmp ugt i32* [[TMP14]], [[A]]
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; CHECK-NEXT: [[TMP16:%.*]] = icmp ult i32* [[TMP11]], [[A]]
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; CHECK-NEXT: [[TMP17:%.*]] = select i1 false, i1 [[TMP15]], i1 [[TMP16]]
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; CHECK-NEXT: [[TMP18:%.*]] = or i1 [[TMP17]], [[MUL_OVERFLOW4]]
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; CHECK-NEXT: [[TMP19:%.*]] = or i1 [[TMP10]], [[TMP18]]
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; CHECK-NEXT: br i1 [[TMP19]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH_LDIST1:%.*]]
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; CHECK-NEXT: [[TMP11:%.*]] = sub i64 0, [[MUL_RESULT3]]
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; CHECK-NEXT: [[TMP12:%.*]] = getelementptr i8, i8* [[A5]], i64 [[MUL_RESULT3]]
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; CHECK-NEXT: [[TMP13:%.*]] = getelementptr i8, i8* [[A5]], i64 [[TMP11]]
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; CHECK-NEXT: [[TMP14:%.*]] = icmp ugt i8* [[TMP13]], [[A5]]
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; CHECK-NEXT: [[TMP15:%.*]] = icmp ult i8* [[TMP12]], [[A5]]
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; CHECK-NEXT: [[TMP16:%.*]] = select i1 false, i1 [[TMP14]], i1 [[TMP15]]
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; CHECK-NEXT: [[TMP17:%.*]] = or i1 [[TMP16]], [[MUL_OVERFLOW4]]
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; CHECK-NEXT: [[TMP18:%.*]] = or i1 [[TMP10]], [[TMP17]]
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; CHECK-NEXT: br i1 [[TMP18]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH_LDIST1:%.*]]
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; CHECK: for.body.ph.lver.orig:
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; CHECK-NEXT: br label [[FOR_BODY_LVER_ORIG:%.*]]
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; CHECK: for.body.lver.orig:
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@ -101,10 +98,10 @@ define void @f(i32* noalias %a, i32* noalias %b, i32* noalias %c, i32* noalias %
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; CHECK-NEXT: [[ARRAYIDXC:%.*]] = getelementptr inbounds i32, i32* [[C]], i64 [[MUL_EXT]]
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; CHECK-NEXT: store i32 [[MULC]], i32* [[ARRAYIDXC]], align 4
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; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[ADD]], [[N]]
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; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT7:%.*]], label [[FOR_BODY]]
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; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT6:%.*]], label [[FOR_BODY]]
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; CHECK: for.end.loopexit:
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; CHECK-NEXT: br label [[FOR_END:%.*]]
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; CHECK: for.end.loopexit7:
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; CHECK: for.end.loopexit6:
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; CHECK-NEXT: br label [[FOR_END]]
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; CHECK: for.end:
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; CHECK-NEXT: ret void
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@ -181,18 +178,15 @@ define void @f_with_offset(i32* noalias %b, i32* noalias %c, i32* noalias %d, i3
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; CHECK-NEXT: [[MUL2:%.*]] = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 8, i64 [[TMP0]])
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; CHECK-NEXT: [[MUL_RESULT3:%.*]] = extractvalue { i64, i1 } [[MUL2]], 0
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; CHECK-NEXT: [[MUL_OVERFLOW4:%.*]] = extractvalue { i64, i1 } [[MUL2]], 1
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; CHECK-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, i8* bitcast (i32* getelementptr inbounds ([8192 x i32], [8192 x i32]* @global_a, i64 0, i64 42) to i8*), i64 [[MUL_RESULT3]]
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; CHECK-NEXT: [[TMP11:%.*]] = bitcast i8* [[UGLYGEP]] to [8192 x i32]*
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; CHECK-NEXT: [[TMP12:%.*]] = sub i64 [[MUL_RESULT3]], -8
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; CHECK-NEXT: [[TMP13:%.*]] = sub i64 8, [[TMP12]]
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; CHECK-NEXT: [[UGLYGEP5:%.*]] = getelementptr i8, i8* bitcast (i32* getelementptr inbounds ([8192 x i32], [8192 x i32]* @global_a, i64 0, i64 42) to i8*), i64 [[TMP13]]
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; CHECK-NEXT: [[TMP14:%.*]] = bitcast i8* [[UGLYGEP5]] to [8192 x i32]*
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; CHECK-NEXT: [[TMP15:%.*]] = icmp ugt [8192 x i32]* [[TMP14]], bitcast (i32* getelementptr inbounds ([8192 x i32], [8192 x i32]* @global_a, i64 0, i64 42) to [8192 x i32]*)
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; CHECK-NEXT: [[TMP16:%.*]] = icmp ult [8192 x i32]* [[TMP11]], bitcast (i32* getelementptr inbounds ([8192 x i32], [8192 x i32]* @global_a, i64 0, i64 42) to [8192 x i32]*)
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; CHECK-NEXT: [[TMP17:%.*]] = select i1 false, i1 [[TMP15]], i1 [[TMP16]]
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; CHECK-NEXT: [[TMP18:%.*]] = or i1 [[TMP17]], [[MUL_OVERFLOW4]]
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; CHECK-NEXT: [[TMP19:%.*]] = or i1 [[TMP10]], [[TMP18]]
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; CHECK-NEXT: br i1 [[TMP19]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH_LDIST1:%.*]]
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; CHECK-NEXT: [[TMP11:%.*]] = sub i64 0, [[MUL_RESULT3]]
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; CHECK-NEXT: [[TMP12:%.*]] = getelementptr i8, i8* bitcast (i32* getelementptr inbounds ([8192 x i32], [8192 x i32]* @global_a, i64 0, i64 42) to i8*), i64 [[MUL_RESULT3]]
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; CHECK-NEXT: [[TMP13:%.*]] = getelementptr i8, i8* bitcast (i32* getelementptr inbounds ([8192 x i32], [8192 x i32]* @global_a, i64 0, i64 42) to i8*), i64 [[TMP11]]
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; CHECK-NEXT: [[TMP14:%.*]] = icmp ugt i8* [[TMP13]], bitcast (i32* getelementptr inbounds ([8192 x i32], [8192 x i32]* @global_a, i64 0, i64 42) to i8*)
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; CHECK-NEXT: [[TMP15:%.*]] = icmp ult i8* [[TMP12]], bitcast (i32* getelementptr inbounds ([8192 x i32], [8192 x i32]* @global_a, i64 0, i64 42) to i8*)
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; CHECK-NEXT: [[TMP16:%.*]] = select i1 false, i1 [[TMP14]], i1 [[TMP15]]
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; CHECK-NEXT: [[TMP17:%.*]] = or i1 [[TMP16]], [[MUL_OVERFLOW4]]
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; CHECK-NEXT: [[TMP18:%.*]] = or i1 [[TMP10]], [[TMP17]]
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; CHECK-NEXT: br i1 [[TMP18]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH_LDIST1:%.*]]
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; CHECK: for.body.ph.lver.orig:
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; CHECK-NEXT: br label [[FOR_BODY_LVER_ORIG:%.*]]
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; CHECK: for.body.lver.orig:
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@ -253,10 +247,10 @@ define void @f_with_offset(i32* noalias %b, i32* noalias %c, i32* noalias %d, i3
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; CHECK-NEXT: [[ARRAYIDXC:%.*]] = getelementptr inbounds i32, i32* [[C]], i64 [[MUL_EXT]]
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; CHECK-NEXT: store i32 [[MULC]], i32* [[ARRAYIDXC]], align 4
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; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[ADD]], [[N]]
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; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT6:%.*]], label [[FOR_BODY]]
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; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT5:%.*]], label [[FOR_BODY]]
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; CHECK: for.end.loopexit:
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; CHECK-NEXT: br label [[FOR_END:%.*]]
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; CHECK: for.end.loopexit6:
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; CHECK: for.end.loopexit5:
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; CHECK-NEXT: br label [[FOR_END]]
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; CHECK: for.end:
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; CHECK-NEXT: ret void
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@ -46,18 +46,15 @@ define void @f1(i16* noalias %a,
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; LV-NEXT: [[MUL2:%.*]] = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 4, i64 [[TMP0]])
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; LV-NEXT: [[MUL_RESULT3:%.*]] = extractvalue { i64, i1 } [[MUL2]], 0
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; LV-NEXT: [[MUL_OVERFLOW4:%.*]] = extractvalue { i64, i1 } [[MUL2]], 1
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; LV-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, i8* [[A5]], i64 [[MUL_RESULT3]]
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; LV-NEXT: [[TMP11:%.*]] = bitcast i8* [[UGLYGEP]] to i16*
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; LV-NEXT: [[TMP12:%.*]] = sub i64 [[MUL_RESULT3]], -4
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; LV-NEXT: [[TMP13:%.*]] = sub i64 4, [[TMP12]]
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; LV-NEXT: [[UGLYGEP6:%.*]] = getelementptr i8, i8* [[A5]], i64 [[TMP13]]
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; LV-NEXT: [[TMP14:%.*]] = bitcast i8* [[UGLYGEP6]] to i16*
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; LV-NEXT: [[TMP15:%.*]] = icmp ugt i16* [[TMP14]], [[A]]
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; LV-NEXT: [[TMP16:%.*]] = icmp ult i16* [[TMP11]], [[A]]
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; LV-NEXT: [[TMP17:%.*]] = select i1 false, i1 [[TMP15]], i1 [[TMP16]]
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; LV-NEXT: [[TMP18:%.*]] = or i1 [[TMP17]], [[MUL_OVERFLOW4]]
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; LV-NEXT: [[TMP19:%.*]] = or i1 [[TMP10]], [[TMP18]]
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; LV-NEXT: br i1 [[TMP19]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]]
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; LV-NEXT: [[TMP11:%.*]] = sub i64 0, [[MUL_RESULT3]]
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; LV-NEXT: [[TMP12:%.*]] = getelementptr i8, i8* [[A5]], i64 [[MUL_RESULT3]]
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; LV-NEXT: [[TMP13:%.*]] = getelementptr i8, i8* [[A5]], i64 [[TMP11]]
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; LV-NEXT: [[TMP14:%.*]] = icmp ugt i8* [[TMP13]], [[A5]]
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; LV-NEXT: [[TMP15:%.*]] = icmp ult i8* [[TMP12]], [[A5]]
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; LV-NEXT: [[TMP16:%.*]] = select i1 false, i1 [[TMP14]], i1 [[TMP15]]
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; LV-NEXT: [[TMP17:%.*]] = or i1 [[TMP16]], [[MUL_OVERFLOW4]]
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; LV-NEXT: [[TMP18:%.*]] = or i1 [[TMP10]], [[TMP17]]
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; LV-NEXT: br i1 [[TMP18]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]]
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; LV: for.body.ph.lver.orig:
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; LV-NEXT: br label [[FOR_BODY_LVER_ORIG:%.*]]
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; LV: for.body.lver.orig:
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@ -91,10 +88,10 @@ define void @f1(i16* noalias %a,
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; LV-NEXT: [[INC]] = add nuw nsw i64 [[IND]], 1
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; LV-NEXT: [[INC1]] = add i32 [[IND1]], 1
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; LV-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INC]], [[N]]
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; LV-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT7:%.*]], label [[FOR_BODY]]
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; LV-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT6:%.*]], label [[FOR_BODY]]
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; LV: for.end.loopexit:
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; LV-NEXT: br label [[FOR_END:%.*]]
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; LV: for.end.loopexit7:
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; LV: for.end.loopexit6:
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; LV-NEXT: br label [[FOR_END]]
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; LV: for.end:
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; LV-NEXT: ret void
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@ -181,18 +178,15 @@ define void @f2(i16* noalias %a,
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; LV-NEXT: [[MUL_RESULT3:%.*]] = extractvalue { i64, i1 } [[MUL2]], 0
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; LV-NEXT: [[MUL_OVERFLOW4:%.*]] = extractvalue { i64, i1 } [[MUL2]], 1
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; LV-NEXT: [[SCEVGEP5:%.*]] = bitcast i16* [[SCEVGEP]] to i8*
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; LV-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, i8* [[SCEVGEP5]], i64 [[MUL_RESULT3]]
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; LV-NEXT: [[TMP15:%.*]] = bitcast i8* [[UGLYGEP]] to i16*
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; LV-NEXT: [[TMP16:%.*]] = sub i64 [[MUL_RESULT3]], -4
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; LV-NEXT: [[TMP17:%.*]] = sub i64 4, [[TMP16]]
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; LV-NEXT: [[UGLYGEP6:%.*]] = getelementptr i8, i8* [[SCEVGEP5]], i64 [[TMP17]]
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; LV-NEXT: [[TMP18:%.*]] = bitcast i8* [[UGLYGEP6]] to i16*
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; LV-NEXT: [[TMP19:%.*]] = icmp ugt i16* [[TMP18]], [[SCEVGEP]]
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; LV-NEXT: [[TMP20:%.*]] = icmp ult i16* [[TMP15]], [[SCEVGEP]]
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; LV-NEXT: [[TMP21:%.*]] = select i1 true, i1 [[TMP19]], i1 [[TMP20]]
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; LV-NEXT: [[TMP22:%.*]] = or i1 [[TMP21]], [[MUL_OVERFLOW4]]
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; LV-NEXT: [[TMP23:%.*]] = or i1 [[TMP11]], [[TMP22]]
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; LV-NEXT: br i1 [[TMP23]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]]
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; LV-NEXT: [[TMP15:%.*]] = sub i64 0, [[MUL_RESULT3]]
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; LV-NEXT: [[TMP16:%.*]] = getelementptr i8, i8* [[SCEVGEP5]], i64 [[MUL_RESULT3]]
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; LV-NEXT: [[TMP17:%.*]] = getelementptr i8, i8* [[SCEVGEP5]], i64 [[TMP15]]
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; LV-NEXT: [[TMP18:%.*]] = icmp ugt i8* [[TMP17]], [[SCEVGEP5]]
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; LV-NEXT: [[TMP19:%.*]] = icmp ult i8* [[TMP16]], [[SCEVGEP5]]
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; LV-NEXT: [[TMP20:%.*]] = select i1 true, i1 [[TMP18]], i1 [[TMP19]]
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; LV-NEXT: [[TMP21:%.*]] = or i1 [[TMP20]], [[MUL_OVERFLOW4]]
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; LV-NEXT: [[TMP22:%.*]] = or i1 [[TMP11]], [[TMP21]]
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; LV-NEXT: br i1 [[TMP22]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]]
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; LV: for.body.ph.lver.orig:
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; LV-NEXT: br label [[FOR_BODY_LVER_ORIG:%.*]]
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; LV: for.body.lver.orig:
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@ -226,10 +220,10 @@ define void @f2(i16* noalias %a,
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; LV-NEXT: [[INC]] = add nuw nsw i64 [[IND]], 1
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; LV-NEXT: [[DEC]] = sub i32 [[IND1]], 1
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; LV-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INC]], [[N]]
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; LV-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT7:%.*]], label [[FOR_BODY]]
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; LV-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT6:%.*]], label [[FOR_BODY]]
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; LV: for.end.loopexit:
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; LV-NEXT: br label [[FOR_END:%.*]]
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; LV: for.end.loopexit7:
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; LV: for.end.loopexit6:
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; LV-NEXT: br label [[FOR_END]]
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; LV: for.end:
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; LV-NEXT: ret void
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@ -295,18 +289,15 @@ define void @f3(i16* noalias %a,
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; LV-NEXT: [[MUL2:%.*]] = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 4, i64 [[TMP0]])
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; LV-NEXT: [[MUL_RESULT3:%.*]] = extractvalue { i64, i1 } [[MUL2]], 0
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; LV-NEXT: [[MUL_OVERFLOW4:%.*]] = extractvalue { i64, i1 } [[MUL2]], 1
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; LV-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, i8* [[A5]], i64 [[MUL_RESULT3]]
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; LV-NEXT: [[TMP11:%.*]] = bitcast i8* [[UGLYGEP]] to i16*
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; LV-NEXT: [[TMP12:%.*]] = sub i64 [[MUL_RESULT3]], -4
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; LV-NEXT: [[TMP13:%.*]] = sub i64 4, [[TMP12]]
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; LV-NEXT: [[UGLYGEP6:%.*]] = getelementptr i8, i8* [[A5]], i64 [[TMP13]]
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; LV-NEXT: [[TMP14:%.*]] = bitcast i8* [[UGLYGEP6]] to i16*
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; LV-NEXT: [[TMP15:%.*]] = icmp ugt i16* [[TMP14]], [[A]]
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; LV-NEXT: [[TMP16:%.*]] = icmp ult i16* [[TMP11]], [[A]]
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; LV-NEXT: [[TMP17:%.*]] = select i1 false, i1 [[TMP15]], i1 [[TMP16]]
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; LV-NEXT: [[TMP18:%.*]] = or i1 [[TMP17]], [[MUL_OVERFLOW4]]
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; LV-NEXT: [[TMP19:%.*]] = or i1 [[TMP10]], [[TMP18]]
|
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; LV-NEXT: br i1 [[TMP19]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]]
|
||||
; LV-NEXT: [[TMP11:%.*]] = sub i64 0, [[MUL_RESULT3]]
|
||||
; LV-NEXT: [[TMP12:%.*]] = getelementptr i8, i8* [[A5]], i64 [[MUL_RESULT3]]
|
||||
; LV-NEXT: [[TMP13:%.*]] = getelementptr i8, i8* [[A5]], i64 [[TMP11]]
|
||||
; LV-NEXT: [[TMP14:%.*]] = icmp ugt i8* [[TMP13]], [[A5]]
|
||||
; LV-NEXT: [[TMP15:%.*]] = icmp ult i8* [[TMP12]], [[A5]]
|
||||
; LV-NEXT: [[TMP16:%.*]] = select i1 false, i1 [[TMP14]], i1 [[TMP15]]
|
||||
; LV-NEXT: [[TMP17:%.*]] = or i1 [[TMP16]], [[MUL_OVERFLOW4]]
|
||||
; LV-NEXT: [[TMP18:%.*]] = or i1 [[TMP10]], [[TMP17]]
|
||||
; LV-NEXT: br i1 [[TMP18]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]]
|
||||
; LV: for.body.ph.lver.orig:
|
||||
; LV-NEXT: br label [[FOR_BODY_LVER_ORIG:%.*]]
|
||||
; LV: for.body.lver.orig:
|
||||
|
|
@ -340,10 +331,10 @@ define void @f3(i16* noalias %a,
|
|||
; LV-NEXT: [[INC]] = add nuw nsw i64 [[IND]], 1
|
||||
; LV-NEXT: [[INC1]] = add i32 [[IND1]], 1
|
||||
; LV-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INC]], [[N]]
|
||||
; LV-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT7:%.*]], label [[FOR_BODY]]
|
||||
; LV-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT6:%.*]], label [[FOR_BODY]]
|
||||
; LV: for.end.loopexit:
|
||||
; LV-NEXT: br label [[FOR_END:%.*]]
|
||||
; LV: for.end.loopexit7:
|
||||
; LV: for.end.loopexit6:
|
||||
; LV-NEXT: br label [[FOR_END]]
|
||||
; LV: for.end:
|
||||
; LV-NEXT: ret void
|
||||
|
|
@ -404,18 +395,15 @@ define void @f4(i16* noalias %a,
|
|||
; LV-NEXT: [[MUL_RESULT3:%.*]] = extractvalue { i64, i1 } [[MUL2]], 0
|
||||
; LV-NEXT: [[MUL_OVERFLOW4:%.*]] = extractvalue { i64, i1 } [[MUL2]], 1
|
||||
; LV-NEXT: [[SCEVGEP5:%.*]] = bitcast i16* [[SCEVGEP]] to i8*
|
||||
; LV-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, i8* [[SCEVGEP5]], i64 [[MUL_RESULT3]]
|
||||
; LV-NEXT: [[TMP13:%.*]] = bitcast i8* [[UGLYGEP]] to i16*
|
||||
; LV-NEXT: [[TMP14:%.*]] = sub i64 [[MUL_RESULT3]], -4
|
||||
; LV-NEXT: [[TMP15:%.*]] = sub i64 4, [[TMP14]]
|
||||
; LV-NEXT: [[UGLYGEP6:%.*]] = getelementptr i8, i8* [[SCEVGEP5]], i64 [[TMP15]]
|
||||
; LV-NEXT: [[TMP16:%.*]] = bitcast i8* [[UGLYGEP6]] to i16*
|
||||
; LV-NEXT: [[TMP17:%.*]] = icmp ugt i16* [[TMP16]], [[SCEVGEP]]
|
||||
; LV-NEXT: [[TMP18:%.*]] = icmp ult i16* [[TMP13]], [[SCEVGEP]]
|
||||
; LV-NEXT: [[TMP19:%.*]] = select i1 true, i1 [[TMP17]], i1 [[TMP18]]
|
||||
; LV-NEXT: [[TMP20:%.*]] = or i1 [[TMP19]], [[MUL_OVERFLOW4]]
|
||||
; LV-NEXT: [[TMP21:%.*]] = or i1 [[TMP11]], [[TMP20]]
|
||||
; LV-NEXT: br i1 [[TMP21]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]]
|
||||
; LV-NEXT: [[TMP13:%.*]] = sub i64 0, [[MUL_RESULT3]]
|
||||
; LV-NEXT: [[TMP14:%.*]] = getelementptr i8, i8* [[SCEVGEP5]], i64 [[MUL_RESULT3]]
|
||||
; LV-NEXT: [[TMP15:%.*]] = getelementptr i8, i8* [[SCEVGEP5]], i64 [[TMP13]]
|
||||
; LV-NEXT: [[TMP16:%.*]] = icmp ugt i8* [[TMP15]], [[SCEVGEP5]]
|
||||
; LV-NEXT: [[TMP17:%.*]] = icmp ult i8* [[TMP14]], [[SCEVGEP5]]
|
||||
; LV-NEXT: [[TMP18:%.*]] = select i1 true, i1 [[TMP16]], i1 [[TMP17]]
|
||||
; LV-NEXT: [[TMP19:%.*]] = or i1 [[TMP18]], [[MUL_OVERFLOW4]]
|
||||
; LV-NEXT: [[TMP20:%.*]] = or i1 [[TMP11]], [[TMP19]]
|
||||
; LV-NEXT: br i1 [[TMP20]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]]
|
||||
; LV: for.body.ph.lver.orig:
|
||||
; LV-NEXT: br label [[FOR_BODY_LVER_ORIG:%.*]]
|
||||
; LV: for.body.lver.orig:
|
||||
|
|
@ -449,10 +437,10 @@ define void @f4(i16* noalias %a,
|
|||
; LV-NEXT: [[INC]] = add nuw nsw i64 [[IND]], 1
|
||||
; LV-NEXT: [[DEC]] = sub i32 [[IND1]], 1
|
||||
; LV-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INC]], [[N]]
|
||||
; LV-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT7:%.*]], label [[FOR_BODY]]
|
||||
; LV-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT6:%.*]], label [[FOR_BODY]]
|
||||
; LV: for.end.loopexit:
|
||||
; LV-NEXT: br label [[FOR_END:%.*]]
|
||||
; LV: for.end.loopexit7:
|
||||
; LV: for.end.loopexit6:
|
||||
; LV-NEXT: br label [[FOR_END]]
|
||||
; LV: for.end:
|
||||
; LV-NEXT: ret void
|
||||
|
|
@ -521,18 +509,15 @@ define void @f5(i16* noalias %a,
|
|||
; LV-NEXT: [[MUL_RESULT3:%.*]] = extractvalue { i64, i1 } [[MUL2]], 0
|
||||
; LV-NEXT: [[MUL_OVERFLOW4:%.*]] = extractvalue { i64, i1 } [[MUL2]], 1
|
||||
; LV-NEXT: [[SCEVGEP5:%.*]] = bitcast i16* [[SCEVGEP]] to i8*
|
||||
; LV-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, i8* [[SCEVGEP5]], i64 [[MUL_RESULT3]]
|
||||
; LV-NEXT: [[TMP13:%.*]] = bitcast i8* [[UGLYGEP]] to i16*
|
||||
; LV-NEXT: [[TMP14:%.*]] = sub i64 [[MUL_RESULT3]], -4
|
||||
; LV-NEXT: [[TMP15:%.*]] = sub i64 4, [[TMP14]]
|
||||
; LV-NEXT: [[UGLYGEP6:%.*]] = getelementptr i8, i8* [[SCEVGEP5]], i64 [[TMP15]]
|
||||
; LV-NEXT: [[TMP16:%.*]] = bitcast i8* [[UGLYGEP6]] to i16*
|
||||
; LV-NEXT: [[TMP17:%.*]] = icmp ugt i16* [[TMP16]], [[SCEVGEP]]
|
||||
; LV-NEXT: [[TMP18:%.*]] = icmp ult i16* [[TMP13]], [[SCEVGEP]]
|
||||
; LV-NEXT: [[TMP19:%.*]] = select i1 true, i1 [[TMP17]], i1 [[TMP18]]
|
||||
; LV-NEXT: [[TMP20:%.*]] = or i1 [[TMP19]], [[MUL_OVERFLOW4]]
|
||||
; LV-NEXT: [[TMP21:%.*]] = or i1 [[TMP11]], [[TMP20]]
|
||||
; LV-NEXT: br i1 [[TMP21]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]]
|
||||
; LV-NEXT: [[TMP13:%.*]] = sub i64 0, [[MUL_RESULT3]]
|
||||
; LV-NEXT: [[TMP14:%.*]] = getelementptr i8, i8* [[SCEVGEP5]], i64 [[MUL_RESULT3]]
|
||||
; LV-NEXT: [[TMP15:%.*]] = getelementptr i8, i8* [[SCEVGEP5]], i64 [[TMP13]]
|
||||
; LV-NEXT: [[TMP16:%.*]] = icmp ugt i8* [[TMP15]], [[SCEVGEP5]]
|
||||
; LV-NEXT: [[TMP17:%.*]] = icmp ult i8* [[TMP14]], [[SCEVGEP5]]
|
||||
; LV-NEXT: [[TMP18:%.*]] = select i1 true, i1 [[TMP16]], i1 [[TMP17]]
|
||||
; LV-NEXT: [[TMP19:%.*]] = or i1 [[TMP18]], [[MUL_OVERFLOW4]]
|
||||
; LV-NEXT: [[TMP20:%.*]] = or i1 [[TMP11]], [[TMP19]]
|
||||
; LV-NEXT: br i1 [[TMP20]], label [[FOR_BODY_PH_LVER_ORIG:%.*]], label [[FOR_BODY_PH:%.*]]
|
||||
; LV: for.body.ph.lver.orig:
|
||||
; LV-NEXT: br label [[FOR_BODY_LVER_ORIG:%.*]]
|
||||
; LV: for.body.lver.orig:
|
||||
|
|
@ -564,10 +549,10 @@ define void @f5(i16* noalias %a,
|
|||
; LV-NEXT: [[INC]] = add nuw nsw i64 [[IND]], 1
|
||||
; LV-NEXT: [[DEC]] = sub i32 [[IND1]], 1
|
||||
; LV-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INC]], [[N]]
|
||||
; LV-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT7:%.*]], label [[FOR_BODY]]
|
||||
; LV-NEXT: br i1 [[EXITCOND]], label [[FOR_END_LOOPEXIT6:%.*]], label [[FOR_BODY]]
|
||||
; LV: for.end.loopexit:
|
||||
; LV-NEXT: br label [[FOR_END:%.*]]
|
||||
; LV: for.end.loopexit7:
|
||||
; LV: for.end.loopexit6:
|
||||
; LV-NEXT: br label [[FOR_END]]
|
||||
; LV: for.end:
|
||||
; LV-NEXT: ret void
|
||||
|
|
|
|||
Loading…
Reference in New Issue