[LLVMdev] Reporting errors when applying fixups

[David Peixotto]

Matheus,

 

The ARM backend reports these kinds of errors using FatalError method of
MCContext. You can see some examples in ARMAsmBackend.cpp (search for "out
of range pc-relative fixup value").

 

-David

 

From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On
Behalf Of Matheus Almeida
Sent: Tuesday, December 03, 2013 5:37 AM
To: llvmdev at cs.uiuc.edu
Subject: [LLVMdev] Reporting errors when applying fixups

 

For a target that hasn't implemented branch relaxation (yet),  does anyone
know what is the preferred way to report an error if a fixup cannot be
applied because, for example, the destination of a branch is out of range? 

I suppose I could use asserts just like AArch64 is doing but that won't stop
the assembler of emitting a branch to an undesired location in release
builds.

Does anyone see any problem in using report_fatal_error to report errors in
the target Asm backend ? 

 

Regards,

Matheus

 

Matheus Almeida

MIPS processor IP

 <http://www.imgtec.com/> www.imgtec.com

 

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