derek.holloway
7502bf64a4
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80 lines
3.2 KiB
LLVM
80 lines
3.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
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; RUN: opt < %s -passes=reassociate -S | FileCheck %s
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define i32 @nsw_preserve_nonnegative(ptr %ptr0, ptr %ptr1, ptr %ptr2) {
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; CHECK-LABEL: define i32 @nsw_preserve_nonnegative(
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; CHECK-SAME: ptr [[PTR0:%.*]], ptr [[PTR1:%.*]], ptr [[PTR2:%.*]]) {
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; CHECK-NEXT: [[V0:%.*]] = load i32, ptr [[PTR0]], align 4, !range [[RNG0:![0-9]+]]
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; CHECK-NEXT: [[V1:%.*]] = load i32, ptr [[PTR1]], align 4, !range [[RNG0]]
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; CHECK-NEXT: [[V2:%.*]] = load i32, ptr [[PTR2]], align 4, !range [[RNG0]]
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; CHECK-NEXT: [[ADD0:%.*]] = add nsw i32 [[V1]], [[V0]]
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; CHECK-NEXT: [[ADD1:%.*]] = add nsw i32 [[ADD0]], [[V2]]
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; CHECK-NEXT: ret i32 [[ADD1]]
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;
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%v0 = load i32, ptr %ptr0, !range !1
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%v1 = load i32, ptr %ptr1, !range !1
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%v2 = load i32, ptr %ptr2, !range !1
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%add0 = add nsw i32 %v1, %v2
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%add1 = add nsw i32 %add0, %v0
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ret i32 %add1
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}
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define i32 @nsw_preserve_nuw_nsw(ptr %ptr0, ptr %ptr1, ptr %ptr2) {
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; CHECK-LABEL: define i32 @nsw_preserve_nuw_nsw(
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; CHECK-SAME: ptr [[PTR0:%.*]], ptr [[PTR1:%.*]], ptr [[PTR2:%.*]]) {
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; CHECK-NEXT: [[V0:%.*]] = load i32, ptr [[PTR0]], align 4
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; CHECK-NEXT: [[V1:%.*]] = load i32, ptr [[PTR1]], align 4
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; CHECK-NEXT: [[V2:%.*]] = load i32, ptr [[PTR2]], align 4
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; CHECK-NEXT: [[ADD0:%.*]] = add nuw nsw i32 [[V1]], [[V0]]
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; CHECK-NEXT: [[ADD1:%.*]] = add nuw nsw i32 [[ADD0]], [[V2]]
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; CHECK-NEXT: ret i32 [[ADD1]]
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;
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%v0 = load i32, ptr %ptr0
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%v1 = load i32, ptr %ptr1
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%v2 = load i32, ptr %ptr2
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%add0 = add nuw nsw i32 %v1, %v2
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%add1 = add nuw nsw i32 %add0, %v0
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ret i32 %add1
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}
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define i32 @nsw_dont_preserve_negative(ptr %ptr0, ptr %ptr1, ptr %ptr2) {
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; CHECK-LABEL: define i32 @nsw_dont_preserve_negative(
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; CHECK-SAME: ptr [[PTR0:%.*]], ptr [[PTR1:%.*]], ptr [[PTR2:%.*]]) {
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; CHECK-NEXT: [[V0:%.*]] = load i32, ptr [[PTR0]], align 4
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; CHECK-NEXT: [[V1:%.*]] = load i32, ptr [[PTR1]], align 4, !range [[RNG0]]
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; CHECK-NEXT: [[V2:%.*]] = load i32, ptr [[PTR2]], align 4, !range [[RNG0]]
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; CHECK-NEXT: [[ADD0:%.*]] = add i32 [[V1]], [[V0]]
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; CHECK-NEXT: [[ADD1:%.*]] = add i32 [[ADD0]], [[V2]]
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; CHECK-NEXT: ret i32 [[ADD1]]
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;
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%v0 = load i32, ptr %ptr0
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%v1 = load i32, ptr %ptr1, !range !1
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%v2 = load i32, ptr %ptr2, !range !1
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%add0 = add nsw i32 %v1, %v2
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%add1 = add nsw i32 %add0, %v0
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ret i32 %add1
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}
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define i32 @nsw_nopreserve_notallnsw(ptr %ptr0, ptr %ptr1, ptr %ptr2) {
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; CHECK-LABEL: define i32 @nsw_nopreserve_notallnsw(
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; CHECK-SAME: ptr [[PTR0:%.*]], ptr [[PTR1:%.*]], ptr [[PTR2:%.*]]) {
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; CHECK-NEXT: [[V0:%.*]] = load i32, ptr [[PTR0]], align 4, !range [[RNG0:![0-9]+]]
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; CHECK-NEXT: [[V1:%.*]] = load i32, ptr [[PTR1]], align 4, !range [[RNG0]]
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; CHECK-NEXT: [[V2:%.*]] = load i32, ptr [[PTR2]], align 4, !range [[RNG0]]
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; CHECK-NEXT: [[ADD0:%.*]] = add i32 [[V1]], [[V0]]
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; CHECK-NEXT: [[ADD1:%.*]] = add i32 [[ADD0]], [[V2]]
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; CHECK-NEXT: ret i32 [[ADD1]]
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;
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%v0 = load i32, ptr %ptr0, !range !1
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%v1 = load i32, ptr %ptr1, !range !1
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%v2 = load i32, ptr %ptr2, !range !1
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%add0 = add nsw i32 %v1, %v2
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%add1 = add i32 %add0, %v0
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ret i32 %add1
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}
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; Positive 32 bit integers
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!1 = !{i32 0, i32 2147483648}
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;.
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; CHECK: [[RNG0]] = !{i32 0, i32 -2147483648}
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;.
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