[llvm] r246540 - [ARM][AArch64] Turn on by default interleaved access lowering

[Silviu Baranga via llvm-commits]

Author: sbaranga
Date: Tue Sep  1 06:12:35 2015
New Revision: 246540

URL: http://llvm.org/viewvc/llvm-project?rev=246540&view=rev
Log:
[ARM][AArch64] Turn on by default interleaved access lowering

Summary:
Interleaved access lowering removes a memory operation and a
sequence of vector shuffles and replaces it with a series of
memory operations. This should be always beneficial.

This pass in only enabled on ARM/AArch64.

Reviewers: rengolin

Subscribers: aemerson, llvm-commits, rengolin

Differential Revision: http://reviews.llvm.org/D12145

Modified:
    llvm/trunk/lib/CodeGen/InterleavedAccessPass.cpp
    llvm/trunk/test/CodeGen/ARM/vext.ll
    llvm/trunk/test/CodeGen/ARM/vpadd.ll

Modified: llvm/trunk/lib/CodeGen/InterleavedAccessPass.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/InterleavedAccessPass.cpp?rev=246540&r1=246539&r2=246540&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/InterleavedAccessPass.cpp (original)
+++ llvm/trunk/lib/CodeGen/InterleavedAccessPass.cpp Tue Sep  1 06:12:35 2015
@@ -52,7 +52,7 @@ using namespace llvm;
 static cl::opt<bool> LowerInterleavedAccesses(
     "lower-interleaved-accesses",
     cl::desc("Enable lowering interleaved accesses to intrinsics"),
-    cl::init(false), cl::Hidden);
+    cl::init(true), cl::Hidden);
 
 static unsigned MaxFactor; // The maximum supported interleave factor.
 

Modified: llvm/trunk/test/CodeGen/ARM/vext.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/vext.ll?rev=246540&r1=246539&r2=246540&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/vext.ll (original)
+++ llvm/trunk/test/CodeGen/ARM/vext.ll Tue Sep  1 06:12:35 2015
@@ -1,4 +1,4 @@
-; RUN: llc -mtriple=arm-eabi -mattr=+neon %s -o - | FileCheck %s
+; RUN: llc -mtriple=arm-eabi -mattr=+neon %s -o - -lower-interleaved-accesses=false | FileCheck %s
 
 define <8 x i8> @test_vextd(<8 x i8>* %A, <8 x i8>* %B) nounwind {
 ;CHECK-LABEL: test_vextd:

Modified: llvm/trunk/test/CodeGen/ARM/vpadd.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/vpadd.ll?rev=246540&r1=246539&r2=246540&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/vpadd.ll (original)
+++ llvm/trunk/test/CodeGen/ARM/vpadd.ll Tue Sep  1 06:12:35 2015
@@ -1,4 +1,4 @@
-; RUN: llc -mtriple=arm-eabi -mattr=+neon %s -o - | FileCheck %s
+; RUN: llc -mtriple=arm-eabi -mattr=+neon %s -o - -lower-interleaved-accesses=false | FileCheck %s
 
 define <8 x i8> @vpaddi8(<8 x i8>* %A, <8 x i8>* %B) nounwind {
 ;CHECK-LABEL: vpaddi8: