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Strength reduce constant-sized vectors into arrays. No functionality change. 

llvm-svn: 220412
This commit is contained in:
Benjamin Kramer 2014-10-22 19:55:26 +00:00
parent 3c7dd6be20
commit 7ad22403fb
2 changed files with 8 additions and 10 deletions
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4
llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
View File

@ -3154,7 +3154,7 @@ SDValue DAGCombiner::MatchBSwapHWordLow(SDNode *N, SDValue N0, SDValue N1,
/// ((x & 0x0000ff00) >> 8) | /// ((x & 0x0000ff00) >> 8) |
/// ((x & 0x00ff0000) << 8) | /// ((x & 0x00ff0000) << 8) |
/// ((x & 0xff000000) >> 8) /// ((x & 0xff000000) >> 8)
static bool isBSwapHWordElement(SDValue N, SmallVectorImpl<SDNode *> &Parts) { static bool isBSwapHWordElement(SDValue N, MutableArrayRef<SDNode *> Parts) {
if (!N.getNode()->hasOneUse()) if (!N.getNode()->hasOneUse())
return false; return false;
@ -3237,7 +3237,6 @@ SDValue DAGCombiner::MatchBSwapHWord(SDNode *N, SDValue N0, SDValue N1) {
if (!TLI.isOperationLegal(ISD::BSWAP, VT)) if (!TLI.isOperationLegal(ISD::BSWAP, VT))
return SDValue(); return SDValue();
SmallVector<SDNode*,4> Parts(4, (SDNode*)nullptr);
// Look for either // Look for either
// (or (or (and), (and)), (or (and), (and))) // (or (or (and), (and)), (or (and), (and)))
// (or (or (or (and), (and)), (and)), (and)) // (or (or (or (and), (and)), (and)), (and))
@ -3245,6 +3244,7 @@ SDValue DAGCombiner::MatchBSwapHWord(SDNode *N, SDValue N0, SDValue N1) {
return SDValue(); return SDValue();
SDValue N00 = N0.getOperand(0); SDValue N00 = N0.getOperand(0);
SDValue N01 = N0.getOperand(1); SDValue N01 = N0.getOperand(1);
SDNode *Parts[4] = {};
if (N1.getOpcode() == ISD::OR && if (N1.getOpcode() == ISD::OR &&
N00.getNumOperands() == 2 && N01.getNumOperands() == 2) { N00.getNumOperands() == 2 && N01.getNumOperands() == 2) {

14
llvm/lib/Support/Unix/Signals.inc
View File

@ -349,13 +349,6 @@ static bool printSymbolizedStackTrace(void **StackTrace, int Depth, FILE *FD) {
sys::fs::createTemporaryFile("symbolizer-output", "", OutputFile); sys::fs::createTemporaryFile("symbolizer-output", "", OutputFile);
FileRemover InputRemover(InputFile.c_str()); FileRemover InputRemover(InputFile.c_str());
FileRemover OutputRemover(OutputFile.c_str()); FileRemover OutputRemover(OutputFile.c_str());
std::vector<const StringRef *> Redirects(3, nullptr);
StringRef InputFileStr(InputFile);
StringRef OutputFileStr(OutputFile);
StringRef StderrFileStr;
Redirects[0] = &InputFileStr;
Redirects[1] = &OutputFileStr;
Redirects[2] = &StderrFileStr;
{ {
raw_fd_ostream Input(InputFD, true); raw_fd_ostream Input(InputFD, true);
@ -365,10 +358,15 @@ static bool printSymbolizedStackTrace(void **StackTrace, int Depth, FILE *FD) {
} }
} }
StringRef InputFileStr(InputFile);
StringRef OutputFileStr(OutputFile);
StringRef StderrFileStr;
const StringRef *Redirects[] = {&InputFileStr, &OutputFileStr,
&StderrFileStr};
const char *Args[] = {"llvm-symbolizer", "--functions=linkage", "--inlining", const char *Args[] = {"llvm-symbolizer", "--functions=linkage", "--inlining",
"--demangle", nullptr}; "--demangle", nullptr};
int RunResult = int RunResult =
sys::ExecuteAndWait(LLVMSymbolizerPath, Args, nullptr, Redirects.data()); sys::ExecuteAndWait(LLVMSymbolizerPath, Args, nullptr, Redirects);
if (RunResult != 0) if (RunResult != 0)
return false; return false;