43 lines
1.7 KiB
LLVM
43 lines
1.7 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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@arr1 = common global [3 x i16] zeroinitializer, align 2
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define i1 @gep_constexpr_index_lt_upper(i32 noundef %i) {
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; CHECK-LABEL: @gep_constexpr_index_lt_upper(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[I:%.*]], 3
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; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
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; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[I]] to i64
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; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i16, ptr @arr1, i64 [[IDXPROM]]
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; CHECK-NEXT: ret i1 true
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;
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entry:
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%cmp = icmp ult i32 %i, 3
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call void @llvm.assume(i1 %cmp)
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%idxprom = zext i32 %i to i64
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%upper = getelementptr inbounds i16, ptr @arr1, i64 %idxprom
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%c.1 = icmp ult ptr %upper, getelementptr inbounds ([3 x i16], ptr @arr1, i64 1, i64 0)
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ret i1 %c.1
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}
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define i1 @gep_constexpr_index_may_be_gt_upper(i32 noundef %i) {
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; CHECK-LABEL: @gep_constexpr_index_may_be_gt_upper(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[I:%.*]], 3
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; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
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; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[I]] to i64
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; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i16, ptr @arr1, i64 [[IDXPROM]]
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; CHECK-NEXT: [[C_1:%.*]] = icmp ult ptr [[UPPER]], getelementptr inbounds ([3 x i16], ptr @arr1, i64 0, i64 2)
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; CHECK-NEXT: ret i1 [[C_1]]
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;
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entry:
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%cmp = icmp ult i32 %i, 3
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call void @llvm.assume(i1 %cmp)
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%idxprom = zext i32 %i to i64
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%upper = getelementptr inbounds i16, ptr @arr1, i64 %idxprom
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%c.1 = icmp ult ptr %upper, getelementptr inbounds ([3 x i16], ptr @arr1, i64 0, i64 2)
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ret i1 %c.1
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}
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