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Add codegen support for using post-increment NEON load/store instructions.

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The vld1-lane, vld1-dup and vst1-lane instructions do not yet support using
post-increment versions, but all the rest of the NEON load/store instructions
should be handled now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125014 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bob Wilson
2011-02-07 17:43:21 +00:00
parent 7de6814405
commit 1c3ef90cab
14 changed files with 924 additions and 142 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
test/CodeGen/ARM/vst4.ll
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@@ -9,6 +9,18 @@ define void @vst4i8(i8* %A, <8 x i8>* %B) nounwind {
ret void
}
;Check for a post-increment updating store with register increment.
define void @vst4i8_update(i8** %ptr, <8 x i8>* %B, i32 %inc) nounwind {
;CHECK: vst4i8_update:
;CHECK: vst4.8 {d16, d17, d18, d19}, [r1, :128], r2
%A = load i8** %ptr
%tmp1 = load <8 x i8>* %B
call void @llvm.arm.neon.vst4.v8i8(i8* %A, <8 x i8> %tmp1, <8 x i8> %tmp1, <8 x i8> %tmp1, <8 x i8> %tmp1, i32 16)
%tmp2 = getelementptr i8* %A, i32 %inc
store i8* %tmp2, i8** %ptr
ret void
}
define void @vst4i16(i16* %A, <4 x i16>* %B) nounwind {
;CHECK: vst4i16:
;Check the alignment value. Max for this instruction is 256 bits:
@@ -89,6 +101,20 @@ define void @vst4Qf(float* %A, <4 x float>* %B) nounwind {
ret void
}
;Check for a post-increment updating store.
define void @vst4Qf_update(float** %ptr, <4 x float>* %B) nounwind {
;CHECK: vst4Qf_update:
;CHECK: vst4.32 {d16, d18, d20, d22}, [r1]!
;CHECK: vst4.32 {d17, d19, d21, d23}, [r1]!
%A = load float** %ptr
%tmp0 = bitcast float* %A to i8*
%tmp1 = load <4 x float>* %B
call void @llvm.arm.neon.vst4.v4f32(i8* %tmp0, <4 x float> %tmp1, <4 x float> %tmp1, <4 x float> %tmp1, <4 x float> %tmp1, i32 1)
%tmp2 = getelementptr float* %A, i32 16
store float* %tmp2, float** %ptr
ret void
}
declare void @llvm.arm.neon.vst4.v8i8(i8*, <8 x i8>, <8 x i8>, <8 x i8>, <8 x i8>, i32) nounwind
declare void @llvm.arm.neon.vst4.v4i16(i8*, <4 x i16>, <4 x i16>, <4 x i16>, <4 x i16>, i32) nounwind
declare void @llvm.arm.neon.vst4.v2i32(i8*, <2 x i32>, <2 x i32>, <2 x i32>, <2 x i32>, i32) nounwind