search for: getx86subtarget

...s very late, just before the final code is emitted. If you're using the X86 target, then the class and the function is already there: lib/Target/X86/X86TargetMachine.cpp: bool X86PassConfig::addPreEmitPass() { bool ShouldPrint = false; if (getOptLevel() != CodeGenOpt::None && getX86Subtarget().hasSSE2()) { addPass(createExecutionDependencyFixPass(&X86::VR128RegClass)); ShouldPrint = true; } if (getX86Subtarget().hasAVX() && UseVZeroUpper) { addPass(createX86IssueVZeroUpperPass()); ShouldPrint = true; } return ShouldPrint; } -Krzysztof -...

On 1/7/2013 1:53 PM, Sergei Larin wrote: > > Also, how much performance are you willing to sacrifice to do what you > do? Maybe turning off scheduling all together is an acceptable solution? Or insert the calls after scheduling. -Krzysztof -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation

Krzysztof, This would be ideal. How can I do the instrumentation pass after the instruction scheduling? Xu Liu Quoting Krzysztof Parzyszek <kparzysz at codeaurora.org>: > On 1/7/2013 1:53 PM, Sergei Larin wrote: >> >> Also, how much performance are you willing to sacrifice to do what you >> do? Maybe turning off scheduling all together is an acceptable solution?

...> emitted. If you're using the X86 target, then the class and the > function is already there: > > lib/Target/X86/X86TargetMachine.cpp: > > bool X86PassConfig::addPreEmitPass() { > bool ShouldPrint = false; > if (getOptLevel() != CodeGenOpt::None && > getX86Subtarget().hasSSE2()) { > addPass(createExecutionDependencyFixPass(&X86::VR128RegClass)); > ShouldPrint = true; > } > > if (getX86Subtarget().hasAVX() && UseVZeroUpper) { > addPass(createX86IssueVZeroUpperPass()); > ShouldPrint = true; > } &g...