RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-23 19:23:23 +01:00
Code Issues Projects Releases Wiki Activity

Add a command line option to skip the delay slot filler pass entirely for Mips.

Browse Source 
The purpose of this option is to silence error messages issued by machine
verifier passes and enable them to run to the end. If this option is not
provided, -verify-machineinstrs complains when it discovers there is a
non-terminator instruction (an instruction that is in a delay slot) after the
first terminator in a basic block.

llvm-svn: 156790
This commit is contained in:
Akira Hatanaka 2012-05-14 23:59:17 +00:00
parent d6a42acd4e
commit 6652e4ae4b
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
lib/Target/Mips/MipsDelaySlotFiller.cpp
View File

@ -36,6 +36,13 @@ static cl::opt<bool> EnableDelaySlotFiller(
cl::desc("Fill the Mips delay slots useful instructions."),
cl::Hidden);
// This option can be used to silence complaints by machine verifier passes.
static cl::opt<bool> SkipDelaySlotFiller(
"skip-mips-delay-filler",
cl::init(false),
cl::desc("Skip MIPS' delay slot filling pass."),
cl::Hidden);
namespace {
struct Filler : public MachineFunctionPass {
@ -53,6 +60,9 @@ namespace {
bool runOnMachineBasicBlock(MachineBasicBlock &MBB);
bool runOnMachineFunction(MachineFunction &F) {
if (SkipDelaySlotFiller)
return false;
bool Changed = false;
for (MachineFunction::iterator FI = F.begin(), FE = F.end();
FI != FE; ++FI)