47d988c54c
replacement to make it at least as generic as the instruction being replaced. This includes: * dropping nsw/nuw flags * getting the least restrictive tbaa and fpmath metadata * merging ranges Fixes PR12979. llvm-svn: 157958
102 lines
2.6 KiB
LLVM
102 lines
2.6 KiB
LLVM
; RUN: opt %s -basicaa -gvn -S -o - | FileCheck %s
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define i32 @test1(i32* %p) {
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; CHECK: @test1(i32* %p)
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; CHECK: %a = load i32* %p, !range !0
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; CHECK: %c = add i32 %a, %a
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%a = load i32* %p, !range !0
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%b = load i32* %p, !range !0
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%c = add i32 %a, %b
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ret i32 %c
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}
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define i32 @test2(i32* %p) {
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; CHECK: @test2(i32* %p)
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; CHECK: %a = load i32* %p
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; CHECK-NOT: range
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; CHECK: %c = add i32 %a, %a
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%a = load i32* %p, !range !0
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%b = load i32* %p
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%c = add i32 %a, %b
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ret i32 %c
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}
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define i32 @test3(i32* %p) {
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; CHECK: @test3(i32* %p)
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; CHECK: %a = load i32* %p, !range ![[DISJOINT_RANGE:[0-9]+]]
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; CHECK: %c = add i32 %a, %a
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%a = load i32* %p, !range !0
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%b = load i32* %p, !range !1
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%c = add i32 %a, %b
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ret i32 %c
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}
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define i32 @test4(i32* %p) {
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; CHECK: @test4(i32* %p)
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; CHECK: %a = load i32* %p, !range ![[MERGED_RANGE:[0-9]+]]
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; CHECK: %c = add i32 %a, %a
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%a = load i32* %p, !range !0
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%b = load i32* %p, !range !2
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%c = add i32 %a, %b
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ret i32 %c
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}
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define i32 @test5(i32* %p) {
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; CHECK: @test5(i32* %p)
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; CHECK: %a = load i32* %p, !range ![[MERGED_SIGNED_RANGE:[0-9]+]]
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; CHECK: %c = add i32 %a, %a
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%a = load i32* %p, !range !3
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%b = load i32* %p, !range !4
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%c = add i32 %a, %b
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ret i32 %c
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}
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define i32 @test6(i32* %p) {
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; CHECK: @test6(i32* %p)
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; CHECK: %a = load i32* %p, !range ![[MERGED_TEST6:[0-9]+]]
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; CHECK: %c = add i32 %a, %a
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%a = load i32* %p, !range !5
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%b = load i32* %p, !range !6
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%c = add i32 %a, %b
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ret i32 %c
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}
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define i32 @test7(i32* %p) {
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; CHECK: @test7(i32* %p)
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; CHECK: %a = load i32* %p, !range ![[MERGED_TEST7:[0-9]+]]
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; CHECK: %c = add i32 %a, %a
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%a = load i32* %p, !range !7
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%b = load i32* %p, !range !8
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%c = add i32 %a, %b
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ret i32 %c
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}
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define i32 @test8(i32* %p) {
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; CHECK: @test8(i32* %p)
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; CHECK: %a = load i32* %p
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; CHECK-NOT: range
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; CHECK: %c = add i32 %a, %a
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%a = load i32* %p, !range !9
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%b = load i32* %p, !range !10
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%c = add i32 %a, %b
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ret i32 %c
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}
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; CHECK: ![[DISJOINT_RANGE]] = metadata !{i32 0, i32 2, i32 3, i32 5}
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; CHECK: ![[MERGED_RANGE]] = metadata !{i32 0, i32 5}
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; CHECK: ![[MERGED_SIGNED_RANGE]] = metadata !{i32 -3, i32 -2, i32 1, i32 2}
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; CHECK: ![[MERGED_TEST6]] = metadata !{i32 10, i32 1}
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; CHECK: ![[MERGED_TEST7]] = metadata !{i32 3, i32 4, i32 5, i32 2}
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!0 = metadata !{i32 0, i32 2}
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!1 = metadata !{i32 3, i32 5}
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!2 = metadata !{i32 2, i32 5}
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!3 = metadata !{i32 -3, i32 -2}
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!4 = metadata !{i32 1, i32 2}
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!5 = metadata !{i32 10, i32 1}
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!6 = metadata !{i32 12, i32 13}
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!7 = metadata !{i32 1, i32 2, i32 3, i32 4}
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!8 = metadata !{i32 5, i32 1}
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!9 = metadata !{i32 1, i32 5}
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!10 = metadata !{i32 5, i32 1}
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