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author | Dimitry Andric <dim@FreeBSD.org> | 2014-11-24 09:08:18 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2014-11-24 09:08:18 +0000 |
commit | 5ca98fd98791947eba83a1ed3f2c8191ef7afa6c (patch) | |
tree | f5944309621cee4fe0976be6f9ac619b7ebfc4c2 /lib/Target/X86/X86PadShortFunction.cpp | |
parent | 68bcb7db193e4bc81430063148253d30a791023e (diff) | |
download | src-5ca98fd98791947eba83a1ed3f2c8191ef7afa6c.tar.gz src-5ca98fd98791947eba83a1ed3f2c8191ef7afa6c.zip |
Vendor import of llvm RELEASE_350/final tag r216957 (effectively, 3.5.0 release):vendor/llvm/llvm-release_350-r216957
Notes
Notes:
svn path=/vendor/llvm/dist/; revision=274955
svn path=/vendor/llvm/llvm-release_35-r216957/; revision=274956; tag=vendor/llvm/llvm-release_350-r216957
Diffstat (limited to 'lib/Target/X86/X86PadShortFunction.cpp')
-rw-r--r-- | lib/Target/X86/X86PadShortFunction.cpp | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/lib/Target/X86/X86PadShortFunction.cpp b/lib/Target/X86/X86PadShortFunction.cpp index 83e75ea994ca..6639875d07e3 100644 --- a/lib/Target/X86/X86PadShortFunction.cpp +++ b/lib/Target/X86/X86PadShortFunction.cpp @@ -15,9 +15,9 @@ #include <algorithm> -#define DEBUG_TYPE "x86-pad-short-functions" #include "X86.h" #include "X86InstrInfo.h" +#include "X86Subtarget.h" #include "llvm/ADT/Statistic.h" #include "llvm/CodeGen/MachineFunctionPass.h" #include "llvm/CodeGen/MachineInstrBuilder.h" @@ -30,6 +30,8 @@ using namespace llvm; +#define DEBUG_TYPE "x86-pad-short-functions" + STATISTIC(NumBBsPadded, "Number of basic blocks padded"); namespace { @@ -49,11 +51,11 @@ namespace { struct PadShortFunc : public MachineFunctionPass { static char ID; PadShortFunc() : MachineFunctionPass(ID) - , Threshold(4), TM(0), TII(0) {} + , Threshold(4), TM(nullptr), TII(nullptr) {} - virtual bool runOnMachineFunction(MachineFunction &MF); + bool runOnMachineFunction(MachineFunction &MF) override; - virtual const char *getPassName() const { + const char *getPassName() const override { return "X86 Atom pad short functions"; } @@ -100,6 +102,9 @@ bool PadShortFunc::runOnMachineFunction(MachineFunction &MF) { } TM = &MF.getTarget(); + if (!TM->getSubtarget<X86Subtarget>().padShortFunctions()) + return false; + TII = TM->getInstrInfo(); // Search through basic blocks and mark the ones that have early returns |