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| 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 | 595817eebe453f44d640c6b6e6c0bdc021a17128 (patch) | |
| tree | a3057c30fe68dd004a4db555383e8bd708828fb4 /llvm | |
| parent | 5bee25884b9b7aec2f1628c6bc0604e7550a30ad (diff) | |
| download | bcm5719-llvm-595817eebe453f44d640c6b6e6c0bdc021a17128.tar.gz bcm5719-llvm-595817eebe453f44d640c6b6e6c0bdc021a17128.zip | |
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.
llvm-svn: 157911
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCISelLowering.cpp | 8 | ||||
| -rw-r--r-- | llvm/test/CodeGen/PowerPC/mem_update.ll | 4 | ||||
| -rw-r--r-- | llvm/test/CodeGen/PowerPC/stwu8.ll | 2 |
3 files changed, 6 insertions, 8 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp index ce70adecbba..46d656cd4a4 100644 --- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/llvm/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/llvm/test/CodeGen/PowerPC/mem_update.ll b/llvm/test/CodeGen/PowerPC/mem_update.ll index 17e7e2849c9..39af11a3d54 100644 --- a/llvm/test/CodeGen/PowerPC/mem_update.ll +++ b/llvm/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/llvm/test/CodeGen/PowerPC/stwu8.ll b/llvm/test/CodeGen/PowerPC/stwu8.ll index fabf7636acf..897bfc6d6ca 100644 --- a/llvm/test/CodeGen/PowerPC/stwu8.ll +++ b/llvm/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" |
