llvm-mirror/test/Transforms/InstSimplify/vector_gep.ll
Matthew Simpson 02e38f25a5 [ConstantFolding, InstSimplify] Handle more vector GEPs
This patch addresses some additional cases where the compiler crashes upon
encountering vector GEPs. This should fix PR36116.

Differential Revision: https://reviews.llvm.org/D44219
Reference: https://bugs.llvm.org/show_bug.cgi?id=36116

llvm-svn: 327638
2018-03-15 16:00:29 +00:00

107 lines
3.3 KiB
LLVM

; RUN: opt -S -instsimplify < %s | FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
declare void @helper(<2 x i8*>)
define void @test(<2 x i8*> %a) {
%A = getelementptr i8, <2 x i8*> %a, <2 x i32> <i32 0, i32 0>
call void @helper(<2 x i8*> %A)
ret void
}
define <4 x i8*> @test1(<4 x i8*> %a) {
%gep = getelementptr i8, <4 x i8*> %a, <4 x i32> zeroinitializer
ret <4 x i8*> %gep
; CHECK-LABEL: @test1
; CHECK-NEXT: ret <4 x i8*> %a
}
define <4 x i8*> @test2(<4 x i8*> %a) {
%gep = getelementptr i8, <4 x i8*> %a
ret <4 x i8*> %gep
; CHECK-LABEL: @test2
; CHECK-NEXT: ret <4 x i8*> %a
}
%struct = type { double, float }
define <4 x float*> @test3() {
%gep = getelementptr %struct, <4 x %struct*> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1>, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
ret <4 x float*> %gep
; CHECK-LABEL: @test3
; CHECK-NEXT: ret <4 x float*> undef
}
%struct.empty = type { }
define <4 x %struct.empty*> @test4(<4 x %struct.empty*> %a) {
%gep = getelementptr %struct.empty, <4 x %struct.empty*> %a, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
ret <4 x %struct.empty*> %gep
; CHECK-LABEL: @test4
; CHECK-NEXT: ret <4 x %struct.empty*> %a
}
define <4 x i8*> @test5() {
%c = inttoptr <4 x i64> <i64 1, i64 2, i64 3, i64 4> to <4 x i8*>
%gep = getelementptr i8, <4 x i8*> %c, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
ret <4 x i8*> %gep
; CHECK-LABEL: @test5
; CHECK-NEXT: ret <4 x i8*> getelementptr (i8, <4 x i8*> <i8* inttoptr (i64 1 to i8*), i8* inttoptr (i64 2 to i8*), i8* inttoptr (i64 3 to i8*), i8* inttoptr (i64 4 to i8*)>, <4 x i64> <i64 1, i64 1, i64 1, i64 1>)
}
@v = global [24 x [42 x [3 x i32]]] zeroinitializer, align 16
define <16 x i32*> @test6() {
; CHECK-LABEL: @test6
; CHECK-NEXT: ret <16 x i32*> getelementptr inbounds ([24 x [42 x [3 x i32]]], [24 x [42 x [3 x i32]]]* @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)
%VectorGep = getelementptr [24 x [42 x [3 x i32]]], [24 x [42 x [3 x i32]]]* @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
ret <16 x i32*> %VectorGep
}
; PR32697
; CHECK-LABEL: tinkywinky(
; CHECK-NEXT: ret <4 x i8*> undef
define <4 x i8*> @tinkywinky() {
%patatino = getelementptr i8, i8* undef, <4 x i64> undef
ret <4 x i8*> %patatino
}
; PR32697
; CHECK-LABEL: dipsy(
; CHECK-NEXT: ret <4 x i8*> undef
define <4 x i8*> @dipsy() {
%patatino = getelementptr i8, <4 x i8 *> undef, <4 x i64> undef
ret <4 x i8*> %patatino
}
; PR32697
; CHECK-LABEL: laalaa(
; CHECK-NEXT: ret <4 x i8*> undef
define <4 x i8*> @laalaa() {
%patatino = getelementptr i8, <4 x i8 *> undef, i64 undef
ret <4 x i8*> %patatino
}
define <2 x i8*> @zero_index(i8* %p) {
; CHECK-LABEL: @zero_index(
; CHECK-NEXT: %gep = getelementptr i8, i8* %p, <2 x i64> zeroinitializer
; CHECK-NEXT: ret <2 x i8*> %gep
;
%gep = getelementptr i8, i8* %p, <2 x i64> zeroinitializer
ret <2 x i8*> %gep
}
define <2 x {}*> @unsized({}* %p) {
; CHECK-LABEL: @unsized(
; CHECK-NEXT: %gep = getelementptr {}, {}* %p, <2 x i64> undef
; CHECK-NEXT: ret <2 x {}*> %gep
;
%gep = getelementptr {}, {}* %p, <2 x i64> undef
ret <2 x {}*> %gep
}