Elena Demikhovsky 746e3cee24 Vector GEP - fixed a crash on InstSimplify Pass.
Vector GEP with mixed (vector and scalar) indices failed on the InstSimplify Pass when all indices are constants.

Differential revision http://reviews.llvm.org/D20149



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269590 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-15 12:30:25 +00:00

64 lines
2.3 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 i32> <i32 1, i32 1, i32 1, i32 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 ([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
}