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Fix typos; NFC. 

llvm-svn: 228493
This commit is contained in:
Andrea Di Biagio 2015-02-07 13:56:20 +00:00
parent 0327866a53
commit 4f8bdcb738
1 changed files with 4 additions and 4 deletions
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8
llvm/lib/Target/X86/X86VZeroUpper.cpp
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@ -9,7 +9,7 @@
// //
// This file defines the pass which inserts x86 AVX vzeroupper instructions // This file defines the pass which inserts x86 AVX vzeroupper instructions
// before calls to SSE encoded functions. This avoids transition latency // before calls to SSE encoded functions. This avoids transition latency
// penalty when tranfering control between AVX encoded instructions and old // penalty when transferring control between AVX encoded instructions and old
// SSE encoding mode. // SSE encoding mode.
// //
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
@ -171,7 +171,7 @@ void VZeroUpperInserter::addDirtySuccessor(MachineBasicBlock &MBB) {
} }
/// processBasicBlock - Loop over all of the instructions in the basic block, /// processBasicBlock - Loop over all of the instructions in the basic block,
/// inserting vzero upper instructions before function calls. /// inserting vzeroupper instructions before function calls.
void VZeroUpperInserter::processBasicBlock(MachineBasicBlock &MBB) { void VZeroUpperInserter::processBasicBlock(MachineBasicBlock &MBB) {
// Start by assuming that the block PASS_THROUGH, which implies no unguarded // Start by assuming that the block PASS_THROUGH, which implies no unguarded
@ -202,7 +202,7 @@ void VZeroUpperInserter::processBasicBlock(MachineBasicBlock &MBB) {
// If the call won't clobber any YMM register, skip it as well. It usually // If the call won't clobber any YMM register, skip it as well. It usually
// happens on helper function calls (such as '_chkstk', '_ftol2') where // happens on helper function calls (such as '_chkstk', '_ftol2') where
// standard calling convention is not used (RegMask is not used to mark // standard calling convention is not used (RegMask is not used to mark
// register clobbered and register usage (def/imp-def/use) is well-dfined // register clobbered and register usage (def/imp-def/use) is well-defined
// and explicitly specified. // and explicitly specified.
if (MI->isCall() && !callClobbersAnyYmmReg(MI)) if (MI->isCall() && !callClobbersAnyYmmReg(MI))
continue; continue;
@ -245,7 +245,7 @@ void VZeroUpperInserter::processBasicBlock(MachineBasicBlock &MBB) {
} }
/// runOnMachineFunction - Loop over all of the basic blocks, inserting /// runOnMachineFunction - Loop over all of the basic blocks, inserting
/// vzero upper instructions before function calls. /// vzeroupper instructions before function calls.
bool VZeroUpperInserter::runOnMachineFunction(MachineFunction &MF) { bool VZeroUpperInserter::runOnMachineFunction(MachineFunction &MF) {
const X86Subtarget &ST = MF.getSubtarget<X86Subtarget>(); const X86Subtarget &ST = MF.getSubtarget<X86Subtarget>();
if (!ST.hasAVX() || ST.hasAVX512()) if (!ST.hasAVX() || ST.hasAVX512())