d10b76552f
The data-layout independent constant folding currently has some rather gnarly code for canonicalizing GEP indices to reduce "notional overindexing", and then infers inbounds based on that canonicalization. Now that we canonicalize to i8 GEPs, this canonicalization is essentially useless, as we'll discard it as soon as the GEP hits the data-layout aware constant folder anyway. As such, I'd like to remove this code entirely. This shouldn't have any impact on optimization capabilities.
122 lines
3.9 KiB
LLVM
122 lines
3.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt -S -passes=instsimplify < %s | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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declare void @helper(<2 x ptr>)
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define void @test(<2 x ptr> %a) {
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; CHECK-LABEL: define void @test(
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; CHECK-SAME: <2 x ptr> [[A:%.*]]) {
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; CHECK-NEXT: call void @helper(<2 x ptr> [[A]])
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; CHECK-NEXT: ret void
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;
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%A = getelementptr i8, <2 x ptr> %a, <2 x i32> <i32 0, i32 0>
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call void @helper(<2 x ptr> %A)
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ret void
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}
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define <4 x ptr> @test1(<4 x ptr> %a) {
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; CHECK-LABEL: define <4 x ptr> @test1(
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; CHECK-SAME: <4 x ptr> [[A:%.*]]) {
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; CHECK-NEXT: ret <4 x ptr> [[A]]
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;
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%gep = getelementptr i8, <4 x ptr> %a, <4 x i32> zeroinitializer
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ret <4 x ptr> %gep
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}
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define <4 x ptr> @test2(<4 x ptr> %a) {
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; CHECK-LABEL: define <4 x ptr> @test2(
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; CHECK-SAME: <4 x ptr> [[A:%.*]]) {
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; CHECK-NEXT: ret <4 x ptr> [[A]]
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;
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%gep = getelementptr i8, <4 x ptr> %a
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ret <4 x ptr> %gep
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}
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%struct = type { double, float }
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define <4 x ptr> @test3() {
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; CHECK-LABEL: define <4 x ptr> @test3() {
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; CHECK-NEXT: ret <4 x ptr> undef
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;
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%gep = getelementptr %struct, <4 x ptr> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1>, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
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ret <4 x ptr> %gep
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}
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%struct.empty = type { }
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define <4 x ptr> @test4(<4 x ptr> %a) {
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; CHECK-LABEL: define <4 x ptr> @test4(
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; CHECK-SAME: <4 x ptr> [[A:%.*]]) {
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; CHECK-NEXT: ret <4 x ptr> [[A]]
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;
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%gep = getelementptr %struct.empty, <4 x ptr> %a, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
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ret <4 x ptr> %gep
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}
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define <4 x ptr> @test5() {
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; CHECK-LABEL: define <4 x ptr> @test5() {
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; CHECK-NEXT: ret <4 x ptr> getelementptr (i8, <4 x ptr> <ptr inttoptr (i64 1 to ptr), ptr inttoptr (i64 2 to ptr), ptr inttoptr (i64 3 to ptr), ptr inttoptr (i64 4 to ptr)>, <4 x i64> <i64 1, i64 1, i64 1, i64 1>)
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;
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%c = inttoptr <4 x i64> <i64 1, i64 2, i64 3, i64 4> to <4 x ptr>
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%gep = getelementptr i8, <4 x ptr> %c, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
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ret <4 x ptr> %gep
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}
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@v = global [24 x [42 x [3 x i32]]] zeroinitializer, align 16
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define <16 x ptr> @test6() {
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; CHECK-LABEL: define <16 x ptr> @test6() {
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; CHECK-NEXT: ret <16 x ptr> getelementptr ([24 x [42 x [3 x i32]]], ptr @v, <16 x i64> zeroinitializer, <16 x i64> zeroinitializer, <16 x i64> <i64 0, i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7, i64 8, i64 9, i64 10, i64 11, i64 12, i64 13, i64 14, i64 15>, <16 x i64> zeroinitializer)
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;
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%VectorGep = getelementptr [24 x [42 x [3 x i32]]], ptr @v, i64 0, i64 0, <16 x i64> <i64 0, i64 1, i64 2, i64 3, i64 4, i64 5, i64 6, i64 7, i64 8, i64 9, i64 10, i64 11, i64 12, i64 13, i64 14, i64 15>, i64 0
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ret <16 x ptr> %VectorGep
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}
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; PR32697
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define <4 x ptr> @tinkywinky() {
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; CHECK-LABEL: define <4 x ptr> @tinkywinky() {
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; CHECK-NEXT: ret <4 x ptr> undef
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;
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%patatino = getelementptr i8, ptr undef, <4 x i64> undef
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ret <4 x ptr> %patatino
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}
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; PR32697
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define <4 x ptr> @dipsy() {
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; CHECK-LABEL: define <4 x ptr> @dipsy() {
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; CHECK-NEXT: ret <4 x ptr> undef
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;
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%patatino = getelementptr i8, <4 x ptr> undef, <4 x i64> undef
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ret <4 x ptr> %patatino
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}
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; PR32697
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define <4 x ptr> @laalaa() {
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; CHECK-LABEL: define <4 x ptr> @laalaa() {
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; CHECK-NEXT: ret <4 x ptr> undef
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;
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%patatino = getelementptr i8, <4 x ptr> undef, i64 undef
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ret <4 x ptr> %patatino
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}
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define <2 x ptr> @zero_index(ptr %p) {
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; CHECK-LABEL: define <2 x ptr> @zero_index(
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; CHECK-SAME: ptr [[P:%.*]]) {
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr i8, ptr [[P]], <2 x i64> zeroinitializer
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; CHECK-NEXT: ret <2 x ptr> [[GEP]]
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;
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%gep = getelementptr i8, ptr %p, <2 x i64> zeroinitializer
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ret <2 x ptr> %gep
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}
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define <2 x ptr> @unsized(ptr %p) {
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; CHECK-LABEL: define <2 x ptr> @unsized(
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; CHECK-SAME: ptr [[P:%.*]]) {
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr {}, ptr [[P]], <2 x i64> undef
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; CHECK-NEXT: ret <2 x ptr> [[GEP]]
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;
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%gep = getelementptr {}, ptr %p, <2 x i64> undef
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ret <2 x ptr> %gep
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}
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