489 lines
20 KiB
LLVM
489 lines
20 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s
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declare void @llvm.assume(i1 noundef) #0
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define i1 @n_unknown(ptr %dst, i32 %n, i32 %i) {
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; CHECK-LABEL: @n_unknown(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[SUB:%.*]] = add i32 [[N:%.*]], -1
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; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[SUB]] to i64
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; CHECK-NEXT: [[PTR_N_SUB_1:%.*]] = getelementptr i32, ptr [[DST:%.*]], i64 [[IDXPROM]]
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; CHECK-NEXT: [[CMP_PTR_DST:%.*]] = icmp uge ptr [[PTR_N_SUB_1]], [[DST]]
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; CHECK-NEXT: br i1 [[CMP_PTR_DST]], label [[PRE_BB_2:%.*]], label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: ret i1 false
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; CHECK: pre.bb.2:
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; CHECK-NEXT: [[PRE_2:%.*]] = icmp uge i32 [[I:%.*]], 0
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; CHECK-NEXT: br i1 [[PRE_2]], label [[TGT_BB:%.*]], label [[EXIT]]
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; CHECK: tgt.bb:
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; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[I]], [[N]]
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; CHECK-NEXT: ret i1 [[CMP1]]
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;
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entry:
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%sub = add i32 %n, -1
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%idxprom = zext i32 %sub to i64
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%ptr.n.sub.1 = getelementptr i32, ptr %dst, i64 %idxprom
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%cmp.ptr.dst = icmp uge ptr %ptr.n.sub.1, %dst
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br i1 %cmp.ptr.dst, label %pre.bb.2, label %exit
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exit:
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ret i1 false
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pre.bb.2:
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%pre.2 = icmp uge i32 %i, 0
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br i1 %pre.2, label %tgt.bb, label %exit
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tgt.bb:
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%cmp1 = icmp ult i32 %i, %n
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ret i1 %cmp1
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}
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define i1 @n_known_zero_due_to_nuw(ptr %dst, i32 %n, i32 %i) {
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; CHECK-LABEL: @n_known_zero_due_to_nuw(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[SUB:%.*]] = add i32 [[N:%.*]], -1
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; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[SUB]] to i64
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; CHECK-NEXT: [[PTR_N_SUB_1:%.*]] = getelementptr i32, ptr [[DST:%.*]], i64 [[IDXPROM]]
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; CHECK-NEXT: [[CMP_PTR_DST:%.*]] = icmp uge ptr [[PTR_N_SUB_1]], [[DST]]
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; CHECK-NEXT: br i1 [[CMP_PTR_DST]], label [[PRE_BB_2:%.*]], label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: ret i1 false
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; CHECK: pre.bb.2:
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; CHECK-NEXT: [[PRE_2:%.*]] = icmp uge i32 [[I:%.*]], 0
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; CHECK-NEXT: br i1 [[PRE_2]], label [[TGT_BB:%.*]], label [[EXIT]]
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; CHECK: tgt.bb:
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; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[I]], [[N]]
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; CHECK-NEXT: ret i1 [[CMP1]]
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;
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entry:
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%sub = add i32 %n, -1
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%idxprom = zext i32 %sub to i64
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%ptr.n.sub.1 = getelementptr i32, ptr %dst, i64 %idxprom
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%cmp.ptr.dst = icmp uge ptr %ptr.n.sub.1, %dst
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br i1 %cmp.ptr.dst, label %pre.bb.2, label %exit
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exit:
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ret i1 false
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pre.bb.2:
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%pre.2 = icmp uge i32 %i, 0
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br i1 %pre.2, label %tgt.bb, label %exit
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tgt.bb:
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%cmp1 = icmp ult i32 %i, %n
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ret i1 %cmp1
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}
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define i4 @inc_ptr_N_could_be_negative(ptr %src, ptr %lower, ptr %upper, i8 %N, i8 %step) {
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; CHECK-LABEL: @inc_ptr_N_could_be_negative(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[SRC_END:%.*]] = getelementptr inbounds i8, ptr [[SRC:%.*]], i8 [[N:%.*]]
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; CHECK-NEXT: [[CMP_SRC_START:%.*]] = icmp ult ptr [[SRC]], [[LOWER:%.*]]
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; CHECK-NEXT: [[CMP_SRC_END:%.*]] = icmp uge ptr [[SRC_END]], [[UPPER:%.*]]
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; CHECK-NEXT: [[OR_PRECOND_0:%.*]] = or i1 [[CMP_SRC_START]], [[CMP_SRC_END]]
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; CHECK-NEXT: br i1 [[OR_PRECOND_0]], label [[TRAP_BB:%.*]], label [[STEP_CHECK:%.*]]
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; CHECK: trap.bb:
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; CHECK-NEXT: ret i4 2
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; CHECK: step.check:
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; CHECK-NEXT: [[STEP_POS:%.*]] = icmp uge i8 [[STEP:%.*]], 0
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; CHECK-NEXT: [[NEXT:%.*]] = add nuw nsw i8 [[STEP]], 2
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; CHECK-NEXT: [[STEP_ULT_N:%.*]] = icmp ult i8 [[NEXT]], [[N]]
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; CHECK-NEXT: [[AND_STEP:%.*]] = and i1 [[STEP_POS]], [[STEP_ULT_N]]
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; CHECK-NEXT: br i1 [[AND_STEP]], label [[PTR_CHECK:%.*]], label [[EXIT:%.*]]
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; CHECK: ptr.check:
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; CHECK-NEXT: [[SRC_STEP:%.*]] = getelementptr inbounds i8, ptr [[SRC]], i8 [[STEP]]
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; CHECK-NEXT: [[CMP_STEP_START:%.*]] = icmp ult ptr [[SRC_STEP]], [[LOWER]]
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; CHECK-NEXT: [[CMP_STEP_END:%.*]] = icmp uge ptr [[SRC_STEP]], [[UPPER]]
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; CHECK-NEXT: [[OR_CHECK:%.*]] = or i1 [[CMP_STEP_START]], [[CMP_STEP_END]]
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; CHECK-NEXT: br i1 [[OR_CHECK]], label [[TRAP_BB]], label [[EXIT]]
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; CHECK: exit:
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; CHECK-NEXT: ret i4 3
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;
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entry:
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%src.end = getelementptr inbounds i8, ptr %src, i8 %N
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%cmp.src.start = icmp ult ptr %src, %lower
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%cmp.src.end = icmp uge ptr %src.end, %upper
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%or.precond.0 = or i1 %cmp.src.start, %cmp.src.end
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br i1 %or.precond.0, label %trap.bb, label %step.check
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trap.bb:
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ret i4 2
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step.check:
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%step.pos = icmp uge i8 %step, 0
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%next = add nuw nsw i8 %step, 2
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%step.ult.N = icmp ult i8 %next, %N
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%and.step = and i1 %step.pos, %step.ult.N
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br i1 %and.step, label %ptr.check, label %exit
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ptr.check:
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%src.step = getelementptr inbounds i8, ptr %src, i8 %step
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%cmp.step.start = icmp ult ptr %src.step, %lower
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%cmp.step.end = icmp uge ptr %src.step, %upper
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%or.check = or i1 %cmp.step.start, %cmp.step.end
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br i1 %or.check, label %trap.bb, label %exit
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exit:
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ret i4 3
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}
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define i4 @inc_ptr_src_uge_end(ptr %src, ptr %lower, ptr %upper, i16 %N, i16 %step) {
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; CHECK-LABEL: @inc_ptr_src_uge_end(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[SRC_END:%.*]] = getelementptr inbounds i8, ptr [[SRC:%.*]], i16 [[N:%.*]]
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; CHECK-NEXT: [[CMP_SRC_START:%.*]] = icmp ult ptr [[SRC]], [[LOWER:%.*]]
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; CHECK-NEXT: [[CMP_SRC_END:%.*]] = icmp uge ptr [[SRC_END]], [[UPPER:%.*]]
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; CHECK-NEXT: [[CMP_OVERFLOW:%.*]] = icmp ugt ptr [[SRC]], [[SRC_END]]
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; CHECK-NEXT: [[OR_PRECOND_0:%.*]] = or i1 [[CMP_SRC_START]], [[CMP_SRC_END]]
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; CHECK-NEXT: [[OR_PRECOND_1:%.*]] = or i1 [[OR_PRECOND_0]], [[CMP_OVERFLOW]]
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; CHECK-NEXT: br i1 [[OR_PRECOND_1]], label [[TRAP_BB:%.*]], label [[STEP_CHECK:%.*]]
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; CHECK: trap.bb:
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; CHECK-NEXT: ret i4 2
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; CHECK: step.check:
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; CHECK-NEXT: [[STEP_POS:%.*]] = icmp uge i16 [[STEP:%.*]], 0
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; CHECK-NEXT: [[NEXT:%.*]] = add nuw nsw i16 [[STEP]], 2
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; CHECK-NEXT: [[STEP_ULT_N:%.*]] = icmp ult i16 [[NEXT]], [[N]]
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; CHECK-NEXT: [[AND_STEP:%.*]] = and i1 [[STEP_POS]], [[STEP_ULT_N]]
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; CHECK-NEXT: br i1 [[AND_STEP]], label [[PTR_CHECK:%.*]], label [[EXIT:%.*]]
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; CHECK: ptr.check:
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; CHECK-NEXT: [[SRC_STEP:%.*]] = getelementptr inbounds i8, ptr [[SRC]], i16 [[STEP]]
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; CHECK-NEXT: [[CMP_STEP_START:%.*]] = icmp ult ptr [[SRC_STEP]], [[LOWER]]
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; CHECK-NEXT: [[CMP_STEP_END:%.*]] = icmp uge ptr [[SRC_STEP]], [[UPPER]]
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; CHECK-NEXT: [[OR_CHECK:%.*]] = or i1 [[CMP_STEP_START]], [[CMP_STEP_END]]
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; CHECK-NEXT: br i1 [[OR_CHECK]], label [[TRAP_BB]], label [[EXIT]]
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; CHECK: exit:
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; CHECK-NEXT: ret i4 3
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;
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entry:
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%src.end = getelementptr inbounds i8, ptr %src, i16 %N
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%cmp.src.start = icmp ult ptr %src, %lower
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%cmp.src.end = icmp uge ptr %src.end, %upper
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%cmp.overflow = icmp ugt ptr %src, %src.end
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%or.precond.0 = or i1 %cmp.src.start, %cmp.src.end
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%or.precond.1 = or i1 %or.precond.0, %cmp.overflow
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br i1 %or.precond.1, label %trap.bb, label %step.check
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trap.bb:
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ret i4 2
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step.check:
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%step.pos = icmp uge i16 %step, 0
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%next = add nuw nsw i16 %step, 2
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%step.ult.N = icmp ult i16 %next, %N
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%and.step = and i1 %step.pos, %step.ult.N
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br i1 %and.step, label %ptr.check, label %exit
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ptr.check:
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%src.step = getelementptr inbounds i8, ptr %src, i16 %step
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%cmp.step.start = icmp ult ptr %src.step, %lower
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%cmp.step.end = icmp uge ptr %src.step, %upper
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%or.check = or i1 %cmp.step.start, %cmp.step.end
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br i1 %or.check, label %trap.bb, label %exit
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exit:
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ret i4 3
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}
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define i4 @inc_ptr_src_uge_end_no_nsw_add(ptr %src, ptr %lower, ptr %upper, i16 %idx, i16 %N, i16 %step) {
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; CHECK-LABEL: @inc_ptr_src_uge_end_no_nsw_add(
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; CHECK-NEXT: entry.1:
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; CHECK-NEXT: [[IDX_POS:%.*]] = icmp sge i16 [[IDX:%.*]], 0
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; CHECK-NEXT: br i1 [[IDX_POS]], label [[ENTRY:%.*]], label [[TRAP_BB:%.*]]
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; CHECK: entry:
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; CHECK-NEXT: [[SRC_IDX:%.*]] = getelementptr inbounds i8, ptr [[SRC:%.*]], i16 [[IDX]]
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; CHECK-NEXT: [[CMP_SRC_START:%.*]] = icmp ult ptr [[SRC_IDX]], [[LOWER:%.*]]
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; CHECK-NEXT: br i1 [[CMP_SRC_START]], label [[TRAP_BB]], label [[STEP_CHECK:%.*]]
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; CHECK: trap.bb:
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; CHECK-NEXT: ret i4 2
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; CHECK: step.check:
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; CHECK-NEXT: [[NEXT:%.*]] = add i16 [[IDX]], 2
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; CHECK-NEXT: [[SRC_STEP:%.*]] = getelementptr inbounds i8, ptr [[SRC]], i16 [[NEXT]]
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; CHECK-NEXT: [[CMP_STEP_START:%.*]] = icmp ult ptr [[SRC_STEP]], [[LOWER]]
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; CHECK-NEXT: [[CMP_STEP_END:%.*]] = icmp uge ptr [[SRC_STEP]], [[UPPER:%.*]]
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; CHECK-NEXT: [[OR_CHECK:%.*]] = or i1 [[CMP_STEP_START]], [[CMP_STEP_END]]
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; CHECK-NEXT: br i1 [[OR_CHECK]], label [[TRAP_BB]], label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: ret i4 3
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;
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entry.1:
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%idx.pos = icmp sge i16 %idx, 0
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br i1 %idx.pos, label %entry, label %trap.bb
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entry:
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%src.idx = getelementptr inbounds i8, ptr %src, i16 %idx
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%cmp.src.start = icmp ult ptr %src.idx, %lower
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br i1 %cmp.src.start, label %trap.bb, label %step.check
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trap.bb:
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ret i4 2
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step.check:
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%next = add i16 %idx, 2
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%src.step = getelementptr inbounds i8, ptr %src, i16 %next
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%cmp.step.start = icmp ult ptr %src.step, %lower
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%cmp.step.end = icmp uge ptr %src.step, %upper
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%or.check = or i1 %cmp.step.start, %cmp.step.end
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br i1 %or.check, label %trap.bb, label %exit
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exit:
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ret i4 3
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}
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define i4 @inc_ptr_src_uge_end_no_nsw_add_sge_0(ptr %src, ptr %lower, ptr %upper, i16 %idx, i16 %N, i16 %step) {
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; CHECK-LABEL: @inc_ptr_src_uge_end_no_nsw_add_sge_0(
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; CHECK-NEXT: entry.1:
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; CHECK-NEXT: [[IDX_POS:%.*]] = icmp sge i16 [[IDX:%.*]], 0
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; CHECK-NEXT: br i1 [[IDX_POS]], label [[ENTRY:%.*]], label [[TRAP_BB:%.*]]
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; CHECK: entry:
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; CHECK-NEXT: [[SRC_IDX:%.*]] = getelementptr inbounds i8, ptr [[SRC:%.*]], i16 [[IDX]]
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; CHECK-NEXT: [[CMP_SRC_START:%.*]] = icmp ult ptr [[SRC_IDX]], [[LOWER:%.*]]
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; CHECK-NEXT: br i1 [[CMP_SRC_START]], label [[TRAP_BB]], label [[STEP_CHECK:%.*]]
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; CHECK: trap.bb:
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; CHECK-NEXT: ret i4 2
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; CHECK: step.check:
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; CHECK-NEXT: [[NEXT:%.*]] = add i16 [[IDX]], 2
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; CHECK-NEXT: [[SRC_STEP:%.*]] = getelementptr inbounds i8, ptr [[SRC]], i16 [[NEXT]]
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; CHECK-NEXT: [[CMP_STEP_START:%.*]] = icmp ult ptr [[SRC_STEP]], [[LOWER]]
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; CHECK-NEXT: [[CMP_STEP_END:%.*]] = icmp uge ptr [[SRC_STEP]], [[UPPER:%.*]]
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; CHECK-NEXT: [[OR_CHECK:%.*]] = or i1 [[CMP_STEP_START]], [[CMP_STEP_END]]
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; CHECK-NEXT: br i1 [[OR_CHECK]], label [[TRAP_BB]], label [[EXIT:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: ret i4 3
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;
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entry.1:
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%idx.pos = icmp sge i16 %idx, 0
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br i1 %idx.pos, label %entry, label %trap.bb
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entry:
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%src.idx = getelementptr inbounds i8, ptr %src, i16 %idx
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%cmp.src.start = icmp ult ptr %src.idx, %lower
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br i1 %cmp.src.start, label %trap.bb, label %step.check
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trap.bb:
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ret i4 2
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step.check:
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%next = add i16 %idx, 2
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%src.step = getelementptr inbounds i8, ptr %src, i16 %next
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%cmp.step.start = icmp ult ptr %src.step, %lower
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%cmp.step.end = icmp uge ptr %src.step, %upper
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%or.check = or i1 %cmp.step.start, %cmp.step.end
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br i1 %or.check, label %trap.bb, label %exit
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exit:
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ret i4 3
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}
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define i4 @ptr_N_step_zext_n_zext(ptr %src, ptr %lower, ptr %upper, i16 %N, i16 %step) {
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; CHECK-LABEL: @ptr_N_step_zext_n_zext(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[N_ADD_1:%.*]] = add nuw nsw i16 [[N:%.*]], 1
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; CHECK-NEXT: [[N_ADD_1_EXT:%.*]] = zext i16 [[N_ADD_1]] to i32
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; CHECK-NEXT: [[SRC_END:%.*]] = getelementptr inbounds i8, ptr [[SRC:%.*]], i32 [[N_ADD_1_EXT]]
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; CHECK-NEXT: [[CMP_SRC_START:%.*]] = icmp ult ptr [[SRC]], [[LOWER:%.*]]
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; CHECK-NEXT: [[CMP_SRC_END:%.*]] = icmp uge ptr [[SRC_END]], [[UPPER:%.*]]
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; CHECK-NEXT: [[OR_PRECOND_0:%.*]] = or i1 [[CMP_SRC_START]], [[CMP_SRC_END]]
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; CHECK-NEXT: br i1 [[OR_PRECOND_0]], label [[TRAP_BB:%.*]], label [[STEP_CHECK:%.*]]
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; CHECK: trap.bb:
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; CHECK-NEXT: ret i4 2
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; CHECK: step.check:
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; CHECK-NEXT: [[STEP_ADD_1:%.*]] = add nuw nsw i16 [[STEP:%.*]], 1
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; CHECK-NEXT: [[STEP_ADD_1_EXT:%.*]] = zext i16 [[STEP_ADD_1]] to i32
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; CHECK-NEXT: [[STEP_ULT_N:%.*]] = icmp ult i32 [[STEP_ADD_1_EXT]], [[N_ADD_1_EXT]]
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; CHECK-NEXT: br i1 [[STEP_ULT_N]], label [[PTR_CHECK:%.*]], label [[EXIT:%.*]]
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; CHECK: ptr.check:
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; CHECK-NEXT: [[SRC_STEP:%.*]] = getelementptr inbounds i8, ptr [[SRC]], i32 [[STEP_ADD_1_EXT]]
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; CHECK-NEXT: [[CMP_STEP_START:%.*]] = icmp ult ptr [[SRC_STEP]], [[LOWER]]
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; CHECK-NEXT: [[CMP_STEP_END:%.*]] = icmp uge ptr [[SRC_STEP]], [[UPPER]]
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; CHECK-NEXT: [[OR_CHECK:%.*]] = or i1 [[CMP_STEP_START]], false
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; CHECK-NEXT: br i1 [[OR_CHECK]], label [[TRAP_BB]], label [[EXIT]]
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; CHECK: exit:
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; CHECK-NEXT: ret i4 3
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;
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entry:
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%N.add.1 = add nuw nsw i16 %N, 1
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%N.add.1.ext = zext i16 %N.add.1 to i32
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%src.end = getelementptr inbounds i8, ptr %src, i32 %N.add.1.ext
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%cmp.src.start = icmp ult ptr %src, %lower
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%cmp.src.end = icmp uge ptr %src.end, %upper
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%or.precond.0 = or i1 %cmp.src.start, %cmp.src.end
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br i1 %or.precond.0, label %trap.bb, label %step.check
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trap.bb:
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ret i4 2
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step.check:
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%step.add.1 = add nuw nsw i16 %step, 1
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%step.add.1.ext = zext i16 %step.add.1 to i32
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%step.ult.N = icmp ult i32 %step.add.1.ext, %N.add.1.ext
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br i1 %step.ult.N, label %ptr.check, label %exit
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ptr.check:
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%src.step = getelementptr inbounds i8, ptr %src, i32 %step.add.1.ext
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%cmp.step.start = icmp ult ptr %src.step, %lower
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%cmp.step.end = icmp uge ptr %src.step, %upper
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%or.check = or i1 %cmp.step.start, %cmp.step.end
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br i1 %or.check, label %trap.bb, label %exit
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exit:
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ret i4 3
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}
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define i4 @ptr_N_step_zext_n_zext_out_of_bounds(ptr %src, ptr %lower, ptr %upper, i16 %N, i16 %step) {
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; CHECK-LABEL: @ptr_N_step_zext_n_zext_out_of_bounds(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[N_ADD_2:%.*]] = add nuw nsw i16 [[N:%.*]], 2
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; CHECK-NEXT: [[N_ADD_2_EXT:%.*]] = zext i16 [[N_ADD_2]] to i32
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; CHECK-NEXT: [[SRC_END:%.*]] = getelementptr inbounds i8, ptr [[SRC:%.*]], i32 [[N_ADD_2_EXT]]
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; CHECK-NEXT: [[CMP_SRC_START:%.*]] = icmp ult ptr [[SRC]], [[LOWER:%.*]]
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; CHECK-NEXT: [[CMP_SRC_END:%.*]] = icmp uge ptr [[SRC_END]], [[UPPER:%.*]]
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; CHECK-NEXT: [[OR_PRECOND_0:%.*]] = or i1 [[CMP_SRC_START]], [[CMP_SRC_END]]
|
|
; CHECK-NEXT: br i1 [[OR_PRECOND_0]], label [[TRAP_BB:%.*]], label [[STEP_CHECK:%.*]]
|
|
; CHECK: trap.bb:
|
|
; CHECK-NEXT: ret i4 2
|
|
; CHECK: step.check:
|
|
; CHECK-NEXT: [[STEP_ADD_2:%.*]] = add nuw nsw i16 [[STEP:%.*]], 2
|
|
; CHECK-NEXT: [[STEP_ADD_2_EXT:%.*]] = zext i16 [[STEP_ADD_2]] to i32
|
|
; CHECK-NEXT: [[STEP_EXT:%.*]] = zext i16 [[STEP]] to i32
|
|
; CHECK-NEXT: [[STEP_ULT_N:%.*]] = icmp ult i32 [[STEP_EXT]], [[N_ADD_2_EXT]]
|
|
; CHECK-NEXT: br i1 [[STEP_ULT_N]], label [[PTR_CHECK:%.*]], label [[EXIT:%.*]]
|
|
; CHECK: ptr.check:
|
|
; CHECK-NEXT: [[SRC_STEP:%.*]] = getelementptr inbounds i8, ptr [[SRC]], i32 [[STEP_ADD_2_EXT]]
|
|
; CHECK-NEXT: [[CMP_STEP_START:%.*]] = icmp ult ptr [[SRC_STEP]], [[LOWER]]
|
|
; CHECK-NEXT: [[CMP_STEP_END:%.*]] = icmp uge ptr [[SRC_STEP]], [[UPPER]]
|
|
; CHECK-NEXT: [[OR_CHECK:%.*]] = or i1 [[CMP_STEP_START]], [[CMP_STEP_END]]
|
|
; CHECK-NEXT: br i1 [[OR_CHECK]], label [[TRAP_BB]], label [[EXIT]]
|
|
; CHECK: exit:
|
|
; CHECK-NEXT: ret i4 3
|
|
;
|
|
entry:
|
|
%N.add.2 = add nuw nsw i16 %N, 2
|
|
%N.add.2.ext = zext i16 %N.add.2 to i32
|
|
%src.end = getelementptr inbounds i8, ptr %src, i32 %N.add.2.ext
|
|
%cmp.src.start = icmp ult ptr %src, %lower
|
|
%cmp.src.end = icmp uge ptr %src.end, %upper
|
|
%or.precond.0 = or i1 %cmp.src.start, %cmp.src.end
|
|
br i1 %or.precond.0, label %trap.bb, label %step.check
|
|
|
|
trap.bb:
|
|
ret i4 2
|
|
|
|
step.check:
|
|
%step.add.2 = add nuw nsw i16 %step, 2
|
|
%step.add.2.ext = zext i16 %step.add.2 to i32
|
|
%step.ext = zext i16 %step to i32
|
|
%step.ult.N = icmp ult i32 %step.ext, %N.add.2.ext
|
|
br i1 %step.ult.N, label %ptr.check, label %exit
|
|
|
|
ptr.check:
|
|
%src.step = getelementptr inbounds i8, ptr %src, i32 %step.add.2.ext
|
|
%cmp.step.start = icmp ult ptr %src.step, %lower
|
|
%cmp.step.end = icmp uge ptr %src.step, %upper
|
|
%or.check = or i1 %cmp.step.start, %cmp.step.end
|
|
br i1 %or.check, label %trap.bb, label %exit
|
|
|
|
exit:
|
|
ret i4 3
|
|
}
|
|
|
|
define i1 @gep_count_add_1_sge_known_ult_1(i32 %count, ptr %p) {
|
|
; CHECK-LABEL: @gep_count_add_1_sge_known_ult_1(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[SGE:%.*]] = icmp sge i32 [[COUNT:%.*]], 1
|
|
; CHECK-NEXT: call void @llvm.assume(i1 [[SGE]])
|
|
; CHECK-NEXT: [[COUNT_EXT:%.*]] = zext i32 [[COUNT]] to i64
|
|
; CHECK-NEXT: [[GEP_COUNT:%.*]] = getelementptr inbounds i32, ptr [[P:%.*]], i64 [[COUNT_EXT]]
|
|
; CHECK-NEXT: [[SUB:%.*]] = add nsw i32 [[COUNT]], -1
|
|
; CHECK-NEXT: [[SUB_EXT:%.*]] = zext i32 [[SUB]] to i64
|
|
; CHECK-NEXT: [[GEP_SUB:%.*]] = getelementptr inbounds i32, ptr [[P]], i64 [[SUB_EXT]]
|
|
; CHECK-NEXT: [[C:%.*]] = icmp ult ptr [[GEP_SUB]], [[GEP_COUNT]]
|
|
; CHECK-NEXT: ret i1 [[C]]
|
|
;
|
|
entry:
|
|
%sge = icmp sge i32 %count, 1
|
|
call void @llvm.assume(i1 %sge)
|
|
%count.ext = zext i32 %count to i64
|
|
%gep.count = getelementptr inbounds i32, ptr %p, i64 %count.ext
|
|
%sub = add nsw i32 %count, -1
|
|
%sub.ext = zext i32 %sub to i64
|
|
%gep.sub = getelementptr inbounds i32, ptr %p, i64 %sub.ext
|
|
%c = icmp ult ptr %gep.sub, %gep.count
|
|
;%2 = icmp uge ptr %0, %p
|
|
ret i1 %c
|
|
}
|
|
|
|
define i1 @gep_count_add_1_sge_known_uge_1(i32 %count, ptr %p) {
|
|
; CHECK-LABEL: @gep_count_add_1_sge_known_uge_1(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[SGE:%.*]] = icmp sge i32 [[COUNT:%.*]], 1
|
|
; CHECK-NEXT: call void @llvm.assume(i1 [[SGE]])
|
|
; CHECK-NEXT: [[COUNT_EXT:%.*]] = zext i32 [[COUNT]] to i64
|
|
; CHECK-NEXT: [[GEP_COUNT:%.*]] = getelementptr inbounds i32, ptr [[P:%.*]], i64 [[COUNT_EXT]]
|
|
; CHECK-NEXT: [[SUB:%.*]] = add nsw i32 [[COUNT]], -1
|
|
; CHECK-NEXT: [[SUB_EXT:%.*]] = zext i32 [[SUB]] to i64
|
|
; CHECK-NEXT: [[GEP_SUB:%.*]] = getelementptr inbounds i32, ptr [[P]], i64 [[SUB_EXT]]
|
|
; CHECK-NEXT: [[C:%.*]] = icmp uge ptr [[GEP_SUB]], [[P]]
|
|
; CHECK-NEXT: ret i1 [[C]]
|
|
;
|
|
entry:
|
|
%sge = icmp sge i32 %count, 1
|
|
call void @llvm.assume(i1 %sge)
|
|
%count.ext = zext i32 %count to i64
|
|
%gep.count = getelementptr inbounds i32, ptr %p, i64 %count.ext
|
|
%sub = add nsw i32 %count, -1
|
|
%sub.ext = zext i32 %sub to i64
|
|
%gep.sub = getelementptr inbounds i32, ptr %p, i64 %sub.ext
|
|
%c = icmp uge ptr %gep.sub, %p
|
|
ret i1 %c
|
|
}
|
|
|
|
define i1 @gep_count_add_2_sge_not_known_ult_1(i32 %count, ptr %p) {
|
|
; CHECK-LABEL: @gep_count_add_2_sge_not_known_ult_1(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[SGE:%.*]] = icmp sge i32 [[COUNT:%.*]], 1
|
|
; CHECK-NEXT: call void @llvm.assume(i1 [[SGE]])
|
|
; CHECK-NEXT: [[COUNT_EXT:%.*]] = zext i32 [[COUNT]] to i64
|
|
; CHECK-NEXT: [[GEP_COUNT:%.*]] = getelementptr inbounds i32, ptr [[P:%.*]], i64 [[COUNT_EXT]]
|
|
; CHECK-NEXT: [[SUB:%.*]] = add nsw i32 [[COUNT]], -2
|
|
; CHECK-NEXT: [[SUB_EXT:%.*]] = zext i32 [[SUB]] to i64
|
|
; CHECK-NEXT: [[GEP_SUB:%.*]] = getelementptr inbounds i32, ptr [[P]], i64 [[SUB_EXT]]
|
|
; CHECK-NEXT: [[C:%.*]] = icmp ult ptr [[GEP_SUB]], [[GEP_COUNT]]
|
|
; CHECK-NEXT: ret i1 [[C]]
|
|
;
|
|
entry:
|
|
%sge = icmp sge i32 %count, 1
|
|
call void @llvm.assume(i1 %sge)
|
|
%count.ext = zext i32 %count to i64
|
|
%gep.count = getelementptr inbounds i32, ptr %p, i64 %count.ext
|
|
%sub = add nsw i32 %count, -2
|
|
%sub.ext = zext i32 %sub to i64
|
|
%gep.sub = getelementptr inbounds i32, ptr %p, i64 %sub.ext
|
|
%c = icmp ult ptr %gep.sub, %gep.count
|
|
ret i1 %c
|
|
}
|
|
|
|
define i1 @gep_count_add_2_sge_not_known_uge_1(i32 %count, ptr %p) {
|
|
; CHECK-LABEL: @gep_count_add_2_sge_not_known_uge_1(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[SGE:%.*]] = icmp sge i32 [[COUNT:%.*]], 1
|
|
; CHECK-NEXT: call void @llvm.assume(i1 [[SGE]])
|
|
; CHECK-NEXT: [[COUNT_EXT:%.*]] = zext i32 [[COUNT]] to i64
|
|
; CHECK-NEXT: [[GEP_COUNT:%.*]] = getelementptr inbounds i32, ptr [[P:%.*]], i64 [[COUNT_EXT]]
|
|
; CHECK-NEXT: [[SUB:%.*]] = add nsw i32 [[COUNT]], -2
|
|
; CHECK-NEXT: [[SUB_EXT:%.*]] = zext i32 [[SUB]] to i64
|
|
; CHECK-NEXT: [[GEP_SUB:%.*]] = getelementptr inbounds i32, ptr [[P]], i64 [[SUB_EXT]]
|
|
; CHECK-NEXT: [[C:%.*]] = icmp uge ptr [[GEP_SUB]], [[P]]
|
|
; CHECK-NEXT: ret i1 [[C]]
|
|
;
|
|
entry:
|
|
%sge = icmp sge i32 %count, 1
|
|
call void @llvm.assume(i1 %sge)
|
|
%count.ext = zext i32 %count to i64
|
|
%gep.count = getelementptr inbounds i32, ptr %p, i64 %count.ext
|
|
%sub = add nsw i32 %count, -2
|
|
%sub.ext = zext i32 %sub to i64
|
|
%gep.sub = getelementptr inbounds i32, ptr %p, i64 %sub.ext
|
|
%c = icmp uge ptr %gep.sub, %p
|
|
ret i1 %c
|
|
}
|