Bug 170974
| Summary: | Should not need to nop-pad between register allocation and a label | ||
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| Product: | WebKit | Reporter: | Filip Pizlo <fpizlo> |
| Component: | JavaScriptCore | Assignee: | Nobody <webkit-unassigned> |
| Status: | NEW | ||
| Severity: | Normal | CC: | ysuzuki |
| Priority: | P2 | ||
| Version: | WebKit Nightly Build | ||
| Hardware: | All | ||
| OS: | All | ||
Filip Pizlo
If I have code like:
GPRTemporary blah
GPRReg blahGPR = blah.gpr()
MacroAssembler::Label = m_jit.label();
It may currently fail register allocation validation, presumably because the validation thinks that the label is inside the register allocation rather than after it. The current workaround is to insert a nop:
GPRTemporary blah
GPRReg blahGPR = blah.gpr()
m_jit.nop();
MacroAssembler::Label = m_jit.label();
We should probably fix that eventually.
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