Issue 151051: [PATCH] Make the need-stub variables accurate and consistent

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Issue 151051: [PATCH] Make the need-stub variables accurate and consistent (Closed)

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Created:
15 years, 1 month ago by Jeffrey Yasskin

Modified:
15 years, 1 month ago

Reviewers:

CC:
llvm-commits_cs.uiuc.edu

Visibility:
Public.

Description

I'm trying to tease apart the different uses for "stubs" in the JIT. In the case of MachineRelocations, I believe "stub" always refers to a far-call stub or a load-a-faraway-global stub, so this patch adds "Far" to the term. The variable was also inconsistent between the positive and negative sense, and the positive sense ("NeedStub") was more demanding than is accurate (since a nearby-enough function can be called directly even if the platform often requires a stub). Since the negative sense causes double-negatives, I switched to "MayNeedFarStub" globally.

Patch Set 1 #

Created: 15 years, 1 month ago

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	Unified diffs	Side-by-side diffs	Stats (+49 lines, -48 lines)			Patch
M	include/llvm/CodeGen/MachineRelocation.h	View	10 chunks	+17 lines, -15 lines	0 comments	Download
M	lib/ExecutionEngine/JIT/JITEmitter.cpp	View	7 chunks	+13 lines, -15 lines	0 comments	Download
M	lib/Target/ARM/ARMCodeEmitter.cpp	View	2 chunks	+5 lines, -4 lines	0 comments	Download
M	lib/Target/X86/X86CodeEmitter.cpp	View	8 chunks	+14 lines, -14 lines	0 comments	Download

Messages

Total messages: 1

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Jeffrey Yasskin

15 years, 1 month ago (2009-11-07 05:30:10 UTC) #1

Please take a look.

I'd like to find an example of a global-variable far stub to put in the comment
for MachineRelocation::mayNeedFarStub(). Can anyone describe the requirement for
ARM or another platform so I can copy it in?

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