[llvm-commits] [llvm] r147689 - in /llvm/trunk: lib/Target/ARM/ARMFrameLowering.cpp test/CodeGen/ARM/spill-q.ll test/CodeGen/Thumb2/aligned-spill.ll

[Jakob Stoklund Olesen]

Author: stoklund
Date: Fri Jan  6 16:19:37 2012
New Revision: 147689

URL: http://llvm.org/viewvc/llvm-project?rev=147689&view=rev
Log:
Enable aligned NEON spilling by default.

Experiments show this to be a small speedup for modern ARM cores.

Modified:
    llvm/trunk/lib/Target/ARM/ARMFrameLowering.cpp
    llvm/trunk/test/CodeGen/ARM/spill-q.ll
    llvm/trunk/test/CodeGen/Thumb2/aligned-spill.ll

Modified: llvm/trunk/lib/Target/ARM/ARMFrameLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMFrameLowering.cpp?rev=147689&r1=147688&r2=147689&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMFrameLowering.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMFrameLowering.cpp Fri Jan  6 16:19:37 2012
@@ -28,7 +28,7 @@
 using namespace llvm;
 
 cl::opt<bool>
-SpillAlignedNEONRegs("align-neon-spills", cl::Hidden,
+SpillAlignedNEONRegs("align-neon-spills", cl::Hidden, cl::init(true),
                      cl::desc("Align ARM NEON spills in prolog and epilog"));
 
 static MachineBasicBlock::iterator

Modified: llvm/trunk/test/CodeGen/ARM/spill-q.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/spill-q.ll?rev=147689&r1=147688&r2=147689&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/spill-q.ll (original)
+++ llvm/trunk/test/CodeGen/ARM/spill-q.ll Fri Jan  6 16:19:37 2012
@@ -11,7 +11,7 @@
 
 define void @aaa(%quuz* %this, i8* %block) {
 ; CHECK: aaa:
-; CHECK: bic sp, sp, #15
+; CHECK: bic {{.*}}, #15
 ; CHECK: vst1.64 {{.*}}sp, :128
 ; CHECK: vld1.64 {{.*}}sp, :128
 entry:

Modified: llvm/trunk/test/CodeGen/Thumb2/aligned-spill.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/Thumb2/aligned-spill.ll?rev=147689&r1=147688&r2=147689&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/Thumb2/aligned-spill.ll (original)
+++ llvm/trunk/test/CodeGen/Thumb2/aligned-spill.ll Fri Jan  6 16:19:37 2012
@@ -1,5 +1,5 @@
-; RUN: llc < %s -mcpu=cortex-a8 | FileCheck %s
-; RUN: llc < %s -mcpu=cortex-a8 -align-neon-spills | FileCheck %s --check-prefix=NEON
+; RUN: llc < %s -mcpu=cortex-a8 -align-neon-spills=0 | FileCheck %s
+; RUN: llc < %s -mcpu=cortex-a8 -align-neon-spills=1 | FileCheck %s --check-prefix=NEON
 target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32"
 target triple = "thumbv7-apple-ios"