llvm/test/Transforms/InstCombine/neon-intrinsics.ll
Jeroen Ketema 874371d11b [ARM][NEON] Use address space in vld([1234]|[234]lane) and vst([1234]|[234]lane) instructions
This commit changes the interface of the vld[1234], vld[234]lane, and vst[1234],
vst[234]lane ARM neon intrinsics and associates an address space with the
pointer that these intrinsics take. This changes, e.g.,

<2 x i32> @llvm.arm.neon.vld1.v2i32(i8*, i32)

to

<2 x i32> @llvm.arm.neon.vld1.v2i32.p0i8(i8*, i32)

This change ensures that address spaces are fully taken into account in the ARM
target during lowering of interleaved loads and stores.

Differential Revision: http://reviews.llvm.org/D12985



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248887 91177308-0d34-0410-b5e6-96231b3b80d8
2015-09-30 10:56:37 +00:00

26 lines
1.2 KiB
LLVM

; RUN: opt < %s -instcombine -S | FileCheck %s
; The alignment arguments for NEON load/store intrinsics can be increased
; by instcombine. Check for this.
; CHECK: vld4.v2i32.p0i8({{.*}}, i32 32)
; CHECK: vst4.p0i8.v2i32({{.*}}, i32 16)
@x = common global [8 x i32] zeroinitializer, align 32
@y = common global [8 x i32] zeroinitializer, align 16
%struct.__neon_int32x2x4_t = type { <2 x i32>, <2 x i32>, <2 x i32>, <2 x i32> }
define void @test() nounwind ssp {
%tmp1 = call %struct.__neon_int32x2x4_t @llvm.arm.neon.vld4.v2i32.p0i8(i8* bitcast ([8 x i32]* @x to i8*), i32 1)
%tmp2 = extractvalue %struct.__neon_int32x2x4_t %tmp1, 0
%tmp3 = extractvalue %struct.__neon_int32x2x4_t %tmp1, 1
%tmp4 = extractvalue %struct.__neon_int32x2x4_t %tmp1, 2
%tmp5 = extractvalue %struct.__neon_int32x2x4_t %tmp1, 3
call void @llvm.arm.neon.vst4.p0i8.v2i32(i8* bitcast ([8 x i32]* @y to i8*), <2 x i32> %tmp2, <2 x i32> %tmp3, <2 x i32> %tmp4, <2 x i32> %tmp5, i32 1)
ret void
}
declare %struct.__neon_int32x2x4_t @llvm.arm.neon.vld4.v2i32.p0i8(i8*, i32) nounwind readonly
declare void @llvm.arm.neon.vst4.p0i8.v2i32(i8*, <2 x i32>, <2 x i32>, <2 x i32>, <2 x i32>, i32) nounwind