[llvm-branch-commits] [llvm-branch] r105400 - in /llvm/branches/Apple/Troughton: ./ lib/CodeGen/MachineCSE.cpp test/CodeGen/ARM/machine-cse-cmp.ll
Bob Wilson
bob.wilson at apple.com
Thu Jun 3 11:30:04 PDT 2010
Author: bwilson
Date: Thu Jun 3 13:30:04 2010
New Revision: 105400
URL: http://llvm.org/viewvc/llvm-project?rev=105400&view=rev
Log:
--- Merging r105399 into '.':
D test/CodeGen/ARM/machine-cse-cmp.ll
U lib/CodeGen/MachineCSE.cpp
Removed:
llvm/branches/Apple/Troughton/test/CodeGen/ARM/machine-cse-cmp.ll
Modified:
llvm/branches/Apple/Troughton/ (props changed)
llvm/branches/Apple/Troughton/lib/CodeGen/MachineCSE.cpp
Propchange: llvm/branches/Apple/Troughton/
------------------------------------------------------------------------------
svn:mergeinfo = /llvm/trunk:105399
Modified: llvm/branches/Apple/Troughton/lib/CodeGen/MachineCSE.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/Apple/Troughton/lib/CodeGen/MachineCSE.cpp?rev=105400&r1=105399&r2=105400&view=diff
==============================================================================
--- llvm/branches/Apple/Troughton/lib/CodeGen/MachineCSE.cpp (original)
+++ llvm/branches/Apple/Troughton/lib/CodeGen/MachineCSE.cpp Thu Jun 3 13:30:04 2010
@@ -31,6 +31,9 @@
STATISTIC(NumCoalesces, "Number of copies coalesced");
STATISTIC(NumCSEs, "Number of common subexpression eliminated");
+static cl::opt<bool> CSEPhysDef("machine-cse-phys-defs",
+ cl::init(false), cl::Hidden);
+
namespace {
class MachineCSE : public MachineFunctionPass {
const TargetInstrInfo *TII;
@@ -373,7 +376,7 @@
// ... Unless the CS is local and it also defines the physical register
// which is not clobbered in between.
- if (PhysDef) {
+ if (PhysDef && CSEPhysDef) {
unsigned CSVN = VNT.lookup(MI);
MachineInstr *CSMI = Exps[CSVN];
if (PhysRegDefReaches(CSMI, MI, PhysDef))
Removed: llvm/branches/Apple/Troughton/test/CodeGen/ARM/machine-cse-cmp.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/Apple/Troughton/test/CodeGen/ARM/machine-cse-cmp.ll?rev=105399&view=auto
==============================================================================
--- llvm/branches/Apple/Troughton/test/CodeGen/ARM/machine-cse-cmp.ll (original)
+++ llvm/branches/Apple/Troughton/test/CodeGen/ARM/machine-cse-cmp.ll (removed)
@@ -1,18 +0,0 @@
-; RUN: llc < %s -march=arm | FileCheck %s
-;rdar://8003725
-
- at G1 = external global i32
- at G2 = external global i32
-
-define i32 @f1(i32 %cond1, i32 %x1, i32 %x2, i32 %x3) {
-entry:
-; CHECK: cmp
-; CHECK: moveq
-; CHECK-NOT: cmp
-; CHECK: moveq
- %tmp1 = icmp eq i32 %cond1, 0
- %tmp2 = select i1 %tmp1, i32 %x1, i32 %x2
- %tmp3 = select i1 %tmp1, i32 %x2, i32 %x3
- %tmp4 = add i32 %tmp2, %tmp3
- ret i32 %tmp4
-}
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