[committed] Remove a redundant condition check in tic6x-linux-tdep.c

[Yao Qi <yao@codesourcery.com>]

Hi,
When gdb is configured as target=tic6x-uclinux, and compiled with clang,
I get this warning:

gdb/tic6x-linux-tdep.c:66:19: error: comparison of unsigned expression >= 0 is always true [-Werror,-Wtautological-compare]

It is redundant to check 'REGNUM >= 0' as it is unsigned.  The
following patch is to fix it.  Committed.

gdb:

2012-11-30  Yao Qi  <yao@codesourcery.com>

	* tic6x-linux-tdep.c (tic6x_register_sigcontext_offset): Don't
	check REGNUM >= 0.
---
 gdb/tic6x-linux-tdep.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/gdb/tic6x-linux-tdep.c b/gdb/tic6x-linux-tdep.c
index 3b96201..f4450c9 100644
--- a/gdb/tic6x-linux-tdep.c
+++ b/gdb/tic6x-linux-tdep.c
@@ -63,7 +63,7 @@ tic6x_register_sigcontext_offset (unsigned int regnum, struct gdbarch *gdbarch)
   else if (regnum == TIC6X_B5_REGNUM || regnum == TIC6X_B5_REGNUM + 2
 	   || regnum == TIC6X_B5_REGNUM + 4)
     return 4 * (regnum - TIC6X_B5_REGNUM + 19);	/* B5, B7, B9 */
-  else if (regnum >= 0 && regnum < TIC6X_A4_REGNUM)
+  else if (regnum < TIC6X_A4_REGNUM)
     return 4 * (regnum - 0 + 8);	/* A0 - A3 */
   else if (regnum >= TIC6X_B0_REGNUM && regnum < TIC6X_B4_REGNUM)
     return 4 * (regnum - TIC6X_B0_REGNUM + 15);	/* B0 - B3 */
-- 
1.7.7.6