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3 Commits

Author SHA1 Message Date
Eli Friedman
6f87b44fe3 When a variable has a specified asm name, but isn't using the register storage class, the asm name doesn't specify a register. PR12244. 
llvm-svn: 152873
 2012-03-15 23:12:51 +00:00
Rafael Espindola
47731fe3f1 Add support for passing variables declared to use a xmm register to asm 
statements using the "x" constraint.

llvm-svn: 122679
 2011-01-02 03:59:13 +00:00
Rafael Espindola
c56f847a96 Add support for declaring register contraints in variables. They are only used 
in asm statements:

register int foo asm("rdi");

asm("..." : ... "r" (foo) ...

We also only accept these variables if the constraint in the asm statement is "r".

This fixes most of PR3933.

llvm-svn: 122643
 2010-12-30 22:59:32 +00:00