[cfe-commits] Mips inline constraint register patch. Request for review and commit.

[Eric Christopher]

Committed here:

	A	test/CodeGen/mips-constraint-regs.c
	M	lib/Basic/Targets.cpp
r153921 = 095abd1524be925f922802a99cdfee3e1b59e79c (refs/remotes/origin/master)

Some IR level checking to make sure what you expect is being emitted would be good as well not just whether or not it is being accepted.

-eric

On Mar 30, 2012, at 7:13 PM, "Carter, Jack" <jcarter at mips.com> wrote:

> This time with the patch :-(
> From: Carter, Jack
> Sent: Friday, March 30, 2012 7:05 PM
> To: cfe-commits at cs.uiuc.edu
> Cc: bruno.cardoso at gmail.com
> Subject: Mips inline constraint register patch. Request for review and commit.
> 
> Mips_reg_constraint.patch
> 
> Contributor: Jack Carter
> 
> Inline asm directives have constraint characters that describe what is legal
> for the particular operand. Some of these constraints state that the operand
> is a register, specific or general.
> 
> This patch adds 3 different characters to the list of characters that represents 
> registers:
> 
>     'c': A register suitable for use in an indirect jump.
>     'l': The lo register.
>     'x': The concatenated hi and lo registers.
> 
> This patch does not address the semantic behavior.
> <Mips_reg_constraint.patch>_______________________________________________
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