Files
clang-p2996/llvm/test/Transforms/InstSimplify/vector_gep.ll
Haicheng Wu 234eabaf07 [ConstantFold] Support vector index when factoring out GEP index into preceding dimensions
Follow-up of r316824. This patch supports the vector type for both current and
previous index when factoring out the current one into the previous one.

Differential Revision: https://reviews.llvm.org/D39556

llvm-svn: 319683
2017-12-04 19:56:33 +00:00

89 lines
2.8 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
}