120 lines
3.5 KiB
LLVM
120 lines
3.5 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -ipsccp -S | FileCheck %s
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declare void @use(i1)
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declare i32 @get_i32()
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define void @load_range(i32* %p) {
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; CHECK-LABEL: @load_range(
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; CHECK-NEXT: [[V:%.*]] = load i32, i32* [[P:%.*]], align 4, !range !0
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: [[C2:%.*]] = icmp ult i32 [[V]], 9
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; CHECK-NEXT: call void @use(i1 [[C2]])
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: [[C4:%.*]] = icmp ugt i32 [[V]], 8
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; CHECK-NEXT: call void @use(i1 [[C4]])
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; CHECK-NEXT: ret void
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;
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%v = load i32, i32* %p, !range !{i32 0, i32 10}
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%c1 = icmp ult i32 %v, 10
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call void @use(i1 %c1)
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%c2 = icmp ult i32 %v, 9
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call void @use(i1 %c2)
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%c3 = icmp ugt i32 %v, 9
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call void @use(i1 %c3)
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%c4 = icmp ugt i32 %v, 8
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call void @use(i1 %c4)
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ret void
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}
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define i32 @load_range_single(i32* %p) {
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; CHECK-LABEL: @load_range_single(
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; CHECK-NEXT: ret i32 0
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;
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%v = load i32, i32* %p, !range !{i32 0, i32 1}
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ret i32 %v
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}
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define i32 @load_range_single_volatile(i32* %p) {
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; CHECK-LABEL: @load_range_single_volatile(
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; CHECK-NEXT: [[V:%.*]] = load volatile i32, i32* [[P:%.*]], align 4, !range !1
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; CHECK-NEXT: ret i32 [[V]]
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;
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%v = load volatile i32, i32* %p, !range !{i32 0, i32 1}
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ret i32 %v
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}
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define void @load_nonnull(i32** %p, i32** %p2) {
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; CHECK-LABEL: @load_nonnull(
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; CHECK-NEXT: [[V:%.*]] = load i32*, i32** [[P:%.*]], align 8, !nonnull !2
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; CHECK-NEXT: [[V2:%.*]] = load i32*, i32** [[P2:%.*]], align 8, !nonnull !2
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: [[C5:%.*]] = icmp eq i32* [[V]], [[V2]]
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; CHECK-NEXT: call void @use(i1 [[C5]])
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; CHECK-NEXT: [[C6:%.*]] = icmp ne i32* [[V]], [[V2]]
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; CHECK-NEXT: call void @use(i1 [[C6]])
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; CHECK-NEXT: ret void
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;
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%v = load i32*, i32** %p, !nonnull !{}
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%v2 = load i32*, i32** %p2, !nonnull !{}
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%c1 = icmp ne i32* %v, null
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call void @use(i1 %c1)
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%c2 = icmp eq i32* %v, null
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call void @use(i1 %c2)
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%c3 = icmp ne i32* null, %v
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call void @use(i1 %c3)
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%c4 = icmp eq i32* null, %v
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call void @use(i1 %c4)
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; There is no particular relationship between two nonnull values.
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%c5 = icmp eq i32* %v, %v2
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call void @use(i1 %c5)
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%c6 = icmp ne i32* %v, %v2
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call void @use(i1 %c6)
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ret void
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}
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define void @call_range(i32* %p) {
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; CHECK-LABEL: @call_range(
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; CHECK-NEXT: [[V:%.*]] = call i32 @get_i32(), !range !0
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: [[C2:%.*]] = icmp ult i32 [[V]], 9
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; CHECK-NEXT: call void @use(i1 [[C2]])
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: [[C4:%.*]] = icmp ugt i32 [[V]], 8
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; CHECK-NEXT: call void @use(i1 [[C4]])
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; CHECK-NEXT: ret void
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;
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%v = call i32 @get_i32(), !range !{i32 0, i32 10}
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%c1 = icmp ult i32 %v, 10
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call void @use(i1 %c1)
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%c2 = icmp ult i32 %v, 9
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call void @use(i1 %c2)
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%c3 = icmp ugt i32 %v, 9
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call void @use(i1 %c3)
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%c4 = icmp ugt i32 %v, 8
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call void @use(i1 %c4)
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ret void
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}
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define internal i1 @ip_cmp_range(i32 %v) {
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; CHECK-LABEL: @ip_cmp_range(
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; CHECK-NEXT: ret i1 undef
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;
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%c = icmp ult i32 %v, 10
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ret i1 %c
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}
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define i1 @ip_load_range(i32* %p) {
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; CHECK-LABEL: @ip_load_range(
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; CHECK-NEXT: [[V:%.*]] = load i32, i32* [[P:%.*]], align 4, !range !0
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; CHECK-NEXT: [[C:%.*]] = call i1 @ip_cmp_range(i32 [[V]])
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; CHECK-NEXT: ret i1 true
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;
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%v = load i32, i32* %p, !range !{i32 0, i32 10}
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%c = call i1 @ip_cmp_range(i32 %v)
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ret i1 %c
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}
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