yuvi/gas-preprocessor — pull request #24 by ylatuya (2013-08-05 14:25:26+00:00)
Title: Fix replacements for macro variables with spaces

Apparently the preprocessor is doing the following replacement introducing a space between the backslash and the registry name:

.macro TEST x
ldr r8, [\x]

.macro TEST r2
ldr r8, [\ r2]