AArch64: Add support for instruction prefetch intrinsic
Instruction prefetch is not implemented for AArch64, it is incorrectly
translated into data prefetch instruction.
Differential Revision: http://reviews.llvm.org/D4777
llvm-svn: 214860
diff --git a/llvm/test/CodeGen/AArch64/arm64-prefetch.ll b/llvm/test/CodeGen/AArch64/arm64-prefetch.ll
index b2e06ed..9dc6301 100644
--- a/llvm/test/CodeGen/AArch64/arm64-prefetch.ll
+++ b/llvm/test/CodeGen/AArch64/arm64-prefetch.ll
@@ -17,6 +17,15 @@
; CHECK: prfum pldl1keep
call void @llvm.prefetch(i8* %tmp, i32 0, i32 3, i32 1)
+ ; CHECK: prfum plil1strm
+ call void @llvm.prefetch(i8* %tmp, i32 0, i32 0, i32 0)
+ ; CHECK: prfum plil3keep
+ call void @llvm.prefetch(i8* %tmp, i32 0, i32 1, i32 0)
+ ; CHECK: prfum plil2keep
+ call void @llvm.prefetch(i8* %tmp, i32 0, i32 2, i32 0)
+ ; CHECK: prfum plil1keep
+ call void @llvm.prefetch(i8* %tmp, i32 0, i32 3, i32 0)
+
; CHECK: prfum pstl1strm
call void @llvm.prefetch(i8* %tmp, i32 1, i32 0, i32 1)
; CHECK: prfum pstl3keep
@@ -57,26 +66,52 @@
%arrayidx12 = getelementptr inbounds i32* %tmp10, i64 %idxprom
%tmp11 = bitcast i32* %arrayidx12 to i8*
- ; CHECK: prfm pstl1strm
- call void @llvm.prefetch(i8* %tmp11, i32 1, i32 0, i32 1)
+
+ ; CHECK: prfm plil1strm
+ call void @llvm.prefetch(i8* %tmp11, i32 0, i32 0, i32 0)
%tmp12 = load i32** @a, align 8, !tbaa !3
%arrayidx15 = getelementptr inbounds i32* %tmp12, i64 %idxprom
- %tmp13 = bitcast i32* %arrayidx15 to i8*
+ %tmp13 = bitcast i32* %arrayidx3 to i8*
- ; CHECK: prfm pstl3keep
- call void @llvm.prefetch(i8* %tmp13, i32 1, i32 1, i32 1)
+ ; CHECK: prfm plil3keep
+ call void @llvm.prefetch(i8* %tmp13, i32 0, i32 1, i32 0)
%tmp14 = load i32** @a, align 8, !tbaa !3
%arrayidx18 = getelementptr inbounds i32* %tmp14, i64 %idxprom
- %tmp15 = bitcast i32* %arrayidx18 to i8*
+ %tmp15 = bitcast i32* %arrayidx6 to i8*
- ; CHECK: prfm pstl2keep
- call void @llvm.prefetch(i8* %tmp15, i32 1, i32 2, i32 1)
+ ; CHECK: prfm plil2keep
+ call void @llvm.prefetch(i8* %tmp15, i32 0, i32 2, i32 0)
%tmp16 = load i32** @a, align 8, !tbaa !3
%arrayidx21 = getelementptr inbounds i32* %tmp16, i64 %idxprom
- %tmp17 = bitcast i32* %arrayidx21 to i8*
+ %tmp17 = bitcast i32* %arrayidx9 to i8*
+
+ ; CHECK: prfm plil1keep
+ call void @llvm.prefetch(i8* %tmp17, i32 0, i32 3, i32 0)
+ %tmp18 = load i32** @a, align 8, !tbaa !3
+ %arrayidx24 = getelementptr inbounds i32* %tmp18, i64 %idxprom
+ %tmp19 = bitcast i32* %arrayidx12 to i8*
+
+
+ ; CHECK: prfm pstl1strm
+ call void @llvm.prefetch(i8* %tmp19, i32 1, i32 0, i32 1)
+ %tmp20 = load i32** @a, align 8, !tbaa !3
+ %arrayidx27 = getelementptr inbounds i32* %tmp20, i64 %idxprom
+ %tmp21 = bitcast i32* %arrayidx15 to i8*
+
+ ; CHECK: prfm pstl3keep
+ call void @llvm.prefetch(i8* %tmp21, i32 1, i32 1, i32 1)
+ %tmp22 = load i32** @a, align 8, !tbaa !3
+ %arrayidx30 = getelementptr inbounds i32* %tmp22, i64 %idxprom
+ %tmp23 = bitcast i32* %arrayidx18 to i8*
+
+ ; CHECK: prfm pstl2keep
+ call void @llvm.prefetch(i8* %tmp23, i32 1, i32 2, i32 1)
+ %tmp24 = load i32** @a, align 8, !tbaa !3
+ %arrayidx33 = getelementptr inbounds i32* %tmp24, i64 %idxprom
+ %tmp25 = bitcast i32* %arrayidx21 to i8*
; CHECK: prfm pstl1keep
- call void @llvm.prefetch(i8* %tmp17, i32 1, i32 3, i32 1)
+ call void @llvm.prefetch(i8* %tmp25, i32 1, i32 3, i32 1)
ret void
}