diff options
| author | Hal Finkel <hfinkel@anl.gov> | 2012-06-04 02:21:00 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2012-06-04 02:21:00 +0000 |
| commit | 77838f9ca974bda956f4a93c20bb4307cf0c470f (patch) | |
| tree | 7132aa088bcd3babe7a63ffaab39ee5d48fabc78 | |
| parent | 761cb0675676f894afa675148bd4e86dcfabd27f (diff) | |
Enable generating PPC pre-increment (r+imm) instructions by default.
It seems that this no longer causes test suite failures on PPC64 (after r157159),
and often gives a performance benefit, so it can be enabled by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157911 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/PowerPC/PPCISelLowering.cpp | 8 | ||||
| -rw-r--r-- | test/CodeGen/PowerPC/mem_update.ll | 4 | ||||
| -rw-r--r-- | test/CodeGen/PowerPC/stwu8.ll | 2 |
3 files changed, 6 insertions, 8 deletions
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp index ce70adecbb..46d656cd4a 100644 --- a/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/lib/Target/PowerPC/PPCISelLowering.cpp @@ -51,9 +51,8 @@ static bool CC_PPC_SVR4_Custom_AlignFPArgRegs(unsigned &ValNo, MVT &ValVT, ISD::ArgFlagsTy &ArgFlags, CCState &State); -static cl::opt<bool> EnablePPCPreinc("enable-ppc-preinc", -cl::desc("enable preincrement load/store generation on PPC (experimental)"), - cl::Hidden); +static cl::opt<bool> DisablePPCPreinc("disable-ppc-preinc", +cl::desc("disable preincrement load/store generation on PPC"), cl::Hidden); static TargetLoweringObjectFile *CreateTLOF(const PPCTargetMachine &TM) { if (TM.getSubtargetImpl()->isDarwin()) @@ -1084,8 +1083,7 @@ bool PPCTargetLowering::getPreIndexedAddressParts(SDNode *N, SDValue &Base, SDValue &Offset, ISD::MemIndexedMode &AM, SelectionDAG &DAG) const { - // Disabled by default for now. - if (!EnablePPCPreinc) return false; + if (DisablePPCPreinc) return false; SDValue Ptr; EVT VT; diff --git a/test/CodeGen/PowerPC/mem_update.ll b/test/CodeGen/PowerPC/mem_update.ll index 17e7e2849c..39af11a3d5 100644 --- a/test/CodeGen/PowerPC/mem_update.ll +++ b/test/CodeGen/PowerPC/mem_update.ll @@ -1,6 +1,6 @@ -; RUN: llc < %s -march=ppc32 -enable-ppc-preinc | \ +; RUN: llc < %s -march=ppc32 | \ ; RUN: not grep addi -; RUN: llc < %s -march=ppc64 -enable-ppc-preinc | \ +; RUN: llc < %s -march=ppc64 | \ ; RUN: not grep addi @Glob = global i64 4 diff --git a/test/CodeGen/PowerPC/stwu8.ll b/test/CodeGen/PowerPC/stwu8.ll index fabf7636ac..897bfc6d6c 100644 --- a/test/CodeGen/PowerPC/stwu8.ll +++ b/test/CodeGen/PowerPC/stwu8.ll @@ -1,4 +1,4 @@ -; RUN: llc -enable-ppc-preinc < %s | FileCheck %s +; RUN: llc < %s | FileCheck %s target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64" target triple = "powerpc64-unknown-linux-gnu" |