02885ef3e4
The logic in ConstraintElimination should trivially apply to GEP constant expressions as well, so update code to deal with GEPOperator instead.
45 lines
1.8 KiB
LLVM
45 lines
1.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s
|
|
|
|
declare void @llvm.assume(i1 noundef) #0
|
|
|
|
@arr1 = common global [3 x i16] zeroinitializer, align 2
|
|
|
|
define i1 @gep_constexpr_index_lt_upper(i32 noundef %i) {
|
|
; CHECK-LABEL: @gep_constexpr_index_lt_upper(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[I:%.*]], 3
|
|
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
|
|
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[I]] to i64
|
|
; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i16, ptr @arr1, i64 [[IDXPROM]]
|
|
; CHECK-NEXT: [[C_1:%.*]] = icmp ult ptr [[UPPER]], getelementptr inbounds ([3 x i16], ptr @arr1, i64 1, i64 0)
|
|
; CHECK-NEXT: ret i1 true
|
|
;
|
|
entry:
|
|
%cmp = icmp ult i32 %i, 3
|
|
call void @llvm.assume(i1 %cmp)
|
|
%idxprom = zext i32 %i to i64
|
|
%upper = getelementptr inbounds i16, ptr @arr1, i64 %idxprom
|
|
%c.1 = icmp ult ptr %upper, getelementptr inbounds ([3 x i16], ptr @arr1, i64 1, i64 0)
|
|
ret i1 %c.1
|
|
}
|
|
|
|
define i1 @gep_constexpr_index_may_be_gt_upper(i32 noundef %i) {
|
|
; CHECK-LABEL: @gep_constexpr_index_may_be_gt_upper(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[I:%.*]], 3
|
|
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
|
|
; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[I]] to i64
|
|
; CHECK-NEXT: [[UPPER:%.*]] = getelementptr inbounds i16, ptr @arr1, i64 [[IDXPROM]]
|
|
; CHECK-NEXT: [[C_1:%.*]] = icmp ult ptr [[UPPER]], getelementptr inbounds ([3 x i16], ptr @arr1, i64 0, i64 2)
|
|
; CHECK-NEXT: ret i1 [[C_1]]
|
|
;
|
|
entry:
|
|
%cmp = icmp ult i32 %i, 3
|
|
call void @llvm.assume(i1 %cmp)
|
|
%idxprom = zext i32 %i to i64
|
|
%upper = getelementptr inbounds i16, ptr @arr1, i64 %idxprom
|
|
%c.1 = icmp ult ptr %upper, getelementptr inbounds ([3 x i16], ptr @arr1, i64 0, i64 2)
|
|
ret i1 %c.1
|
|
}
|