[binutils-gdb] Add support for AArch64 system register names IP0, IP1, FP and LR.

[Nick Clifton <nickc at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=62e20ed45e3da5f3ba695e4ee109317668180fe6

commit 62e20ed45e3da5f3ba695e4ee109317668180fe6
Author: Michael Collison <michael.collison@arm.com>
Date:   Wed Jun 7 13:34:34 2017 +0100

    Add support for AArch64 system register names IP0, IP1, FP and LR.
    
    	* config/tc-aarch64.c (reg_entry_reg_names): Add IP0,
    	IP1, FP, and LR as register aliases of register 16, 17, 29
    	and 30 respectively.
    	* testsuite/gas/aarch64/diagnostic.l: Remove diagnostic
    	prohibiting register 'lr' which is now an alias.
    	* testsuite/gas/aarch64/diagnostic.s: Remove instruction
    	utilizing register 'lr' which is now an alias.

Diff:
---
 gas/ChangeLog                          | 10 ++++++++++
 gas/config/tc-aarch64.c                |  5 +++++
 gas/testsuite/gas/aarch64/diagnostic.l |  1 -
 gas/testsuite/gas/aarch64/diagnostic.s |  2 +-
 4 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/gas/ChangeLog b/gas/ChangeLog
index d77052a..a1853a4 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,13 @@
+2017-06-07  Michael Collison  <michael.collison@arm.com>
+
+	* config/tc-aarch64.c (reg_entry_reg_names): Add IP0,
+	IP1, FP, and LR as register aliases of register 16, 17, 29
+	and 30 respectively.
+	* testsuite/gas/aarch64/diagnostic.l: Remove diagnostic
+	prohibiting register 'lr' which is now an alias.
+	* testsuite/gas/aarch64/diagnostic.s: Remove instruction
+	utilizing register 'lr' which is now an alias.
+
 2017-06-06  Jiong Wang  <jiong.wang@arm.com>
 
 	* config/tc-arm.c (reject_bad_reg): Allow REG_SP on ARMv8-A.
diff --git a/gas/config/tc-aarch64.c b/gas/config/tc-aarch64.c
index cdb2903..be01bdd 100644
--- a/gas/config/tc-aarch64.c
+++ b/gas/config/tc-aarch64.c
@@ -6797,6 +6797,11 @@ static const reg_entry reg_names[] = {
   REGDEF (wzr, 31, Z_32), REGDEF (WZR, 31, Z_32),
   REGDEF (xzr, 31, Z_64), REGDEF (XZR, 31, Z_64),
 
+  REGDEF (ip0, 16, R_64), REGDEF (IP0, 16, R_64),
+  REGDEF (ip1, 17, R_64), REGDEF (IP1, 17, R_64),
+  REGDEF (fp, 29, R_64), REGDEF (FP, 29, R_64),
+  REGDEF (lr, 30, R_64), REGDEF (LR, 30, R_64),
+
   /* Floating-point single precision registers.  */
   REGSET (s, FP_S), REGSET (S, FP_S),
 
diff --git a/gas/testsuite/gas/aarch64/diagnostic.l b/gas/testsuite/gas/aarch64/diagnostic.l
index 6a2563e..b749d2e 100644
--- a/gas/testsuite/gas/aarch64/diagnostic.l
+++ b/gas/testsuite/gas/aarch64/diagnostic.l
@@ -98,7 +98,6 @@
 [^:]*:100: Error: operand 3 must be one of the standard conditions, excluding AL and NV. -- `cinc w0,w1,nv'
 [^:]*:101: Error: operand 2 must be one of the standard conditions, excluding AL and NV. -- `cset w0,al'
 [^:]*:102: Error: operand 2 must be one of the standard conditions, excluding AL and NV. -- `cset w0,nv'
-[^:]*:105: Error: operand 1 must be an integer register -- `ret lr'
 [^:]*:106: Error: operand 1 must be an integer register -- `ret kk'
 [^:]*:107: Error: immediate operand required at operand 1 -- `clrex x0'
 [^:]*:108: Error: immediate operand required at operand 1 -- `clrex w0'
diff --git a/gas/testsuite/gas/aarch64/diagnostic.s b/gas/testsuite/gas/aarch64/diagnostic.s
index d2b9244..09126e6 100644
--- a/gas/testsuite/gas/aarch64/diagnostic.s
+++ b/gas/testsuite/gas/aarch64/diagnostic.s
@@ -102,7 +102,7 @@
 	cset	w0, nv
 
 	# test diagnostic info on optional operand
-	ret	lr
+
 	ret	kk
 	clrex	x0
 	clrex	w0