PR binutils/10924

        * arm-dis.c (arm_opcodes): Specify %R in cases where using r15
        results in unpredictable behaviour.
        (print_insn_arm): Handle %R.

        * gas/arm/unpredictable.s: New test case - checks the disassembly
        of instructions with unpredictable behaviour.
        * gas/arm/unpredictable.d: New file - expected disassembly.

3 files changed, 169 insertions, 0 deletions

diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index 97983b2..e8b4372 100644
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2009-12-14  Nick Clifton  <nickc@redhat.com>
+
+	PR binutils/10924
+	* gas/arm/unpredictable.s: New test case - checks the disassembly
+	of instructions with unpredictable behaviour.
+	* gas/arm/unpredictable.d: New file - expected disassembly.
+
 2009-12-11  Quentin Neill  <quentin.neill@amd.com>
 
 	* gas/i386/fma4.d: Add test cases.
diff --git a/gas/testsuite/gas/arm/unpredictable.d b/gas/testsuite/gas/arm/unpredictable.d
new file mode 100644
index 0000000..4b7e801
--- /dev/null
+++ b/gas/testsuite/gas/arm/unpredictable.d
@@ -0,0 +1,68 @@
+# name: Upredictable Instructions
+# objdump: -D --prefix-addresses --show-raw-insn
+
+.*: +file format .*arm.*
+
+Disassembly of section .text:
+0+000 <[^>]+> [^<]+<UNPREDICTABLE>
+0+004 <[^>]+> [^<]+<UNPREDICTABLE>
+0+008 <[^>]+> [^<]+<UNPREDICTABLE>
+0+00c <[^>]+> [^<]+<UNPREDICTABLE>
+0+010 <[^>]+> [^<]+<UNPREDICTABLE>
+0+014 <[^>]+> [^<]+<UNPREDICTABLE>
+0+018 <[^>]+> [^<]+<UNPREDICTABLE>
+0+01c <[^>]+> [^<]+<UNPREDICTABLE>
+0+020 <[^>]+> [^<]+<UNPREDICTABLE>
+0+024 <[^>]+> [^<]+<UNPREDICTABLE>
+0+028 <[^>]+> [^<]+<UNPREDICTABLE>
+0+02c <[^>]+> [^<]+<UNPREDICTABLE>
+0+030 <[^>]+> [^<]+<UNPREDICTABLE>
+0+034 <[^>]+> [^<]+<UNPREDICTABLE>
+0+038 <[^>]+> [^<]+<UNPREDICTABLE>
+0+03c <[^>]+> [^<]+<UNPREDICTABLE>
+0+040 <[^>]+> [^<]+<UNPREDICTABLE>
+0+044 <[^>]+> [^<]+<UNPREDICTABLE>
+0+048 <[^>]+> [^<]+<UNPREDICTABLE>
+0+04c <[^>]+> [^<]+<UNPREDICTABLE>
+0+050 <[^>]+> [^<]+<UNPREDICTABLE>
+0+054 <[^>]+> [^<]+<UNPREDICTABLE>
+0+058 <[^>]+> [^<]+<UNPREDICTABLE>
+0+05c <[^>]+> [^<]+<UNPREDICTABLE>
+0+060 <[^>]+> [^<]+<UNPREDICTABLE>
+0+064 <[^>]+> [^<]+<UNPREDICTABLE>
+0+068 <[^>]+> [^<]+<UNPREDICTABLE>
+0+06c <[^>]+> [^<]+<UNPREDICTABLE>
+0+070 <[^>]+> [^<]+<UNPREDICTABLE>
+0+074 <[^>]+> [^<]+<UNPREDICTABLE>
+0+078 <[^>]+> [^<]+<UNPREDICTABLE>
+0+07c <[^>]+> [^<]+<UNPREDICTABLE>
+0+080 <[^>]+> [^<]+<UNPREDICTABLE>
+0+084 <[^>]+> [^<]+<UNPREDICTABLE>
+0+088 <[^>]+> [^<]+<UNPREDICTABLE>
+0+08c <[^>]+> [^<]+<UNPREDICTABLE>
+0+090 <[^>]+> [^<]+<UNPREDICTABLE>
+0+094 <[^>]+> [^<]+<UNPREDICTABLE>
+0+098 <[^>]+> [^<]+<UNPREDICTABLE>
+0+09c <[^>]+> [^<]+<UNPREDICTABLE>
+0+0a0 <[^>]+> [^<]+<UNPREDICTABLE>
+0+0a4 <[^>]+> [^<]+<UNPREDICTABLE>
+0+0a8 <[^>]+> [^<]+<UNPREDICTABLE>
+0+0ac <[^>]+> [^<]+<UNPREDICTABLE>
+0+0b0 <[^>]+> [^<]+<UNPREDICTABLE>
+0+0b4 <[^>]+> [^<]+<UNPREDICTABLE>
+0+0b8 <[^>]+> [^<]+<UNPREDICTABLE>
+0+0bc <[^>]+> [^<]+<UNPREDICTABLE>
+0+0c0 <[^>]+> [^<]+<UNPREDICTABLE>
+0+0c4 <[^>]+> [^<]+<UNPREDICTABLE>
+0+0c8 <[^>]+> [^<]+<UNPREDICTABLE>
+0+0cc <[^>]+> [^<]+<UNPREDICTABLE>
+0+0d0 <[^>]+> [^<]+<UNPREDICTABLE>
+0+0d4 <[^>]+> [^<]+<UNPREDICTABLE>
+0+0d8 <[^>]+> [^<]+<UNPREDICTABLE>
+0+0dc <[^>]+> [^<]+<UNPREDICTABLE>
+0+0e0 <[^>]+> [^<]+<UNPREDICTABLE>
+0+0e4 <[^>]+> [^<]+<UNPREDICTABLE>
+0+0e8 <[^>]+> [^<]+<UNPREDICTABLE>
+0+0ec <[^>]+> [^<]+<UNPREDICTABLE>
+#pass
+
diff --git a/gas/testsuite/gas/arm/unpredictable.s b/gas/testsuite/gas/arm/unpredictable.s
new file mode 100644
index 0000000..36cfce9
--- /dev/null
+++ b/gas/testsuite/gas/arm/unpredictable.s
@@ -0,0 +1,94 @@
+        .text
+        .global upredictable
+unpredictable:
+        .word   0x004f00b1      @ strheq  r0, [pc], #-1
+        .word   0x005fffff      @ ldrsheq pc, [pc], #-255
+        .word   0x007fffff      @ ldrsheq pc, [pc, #-255]!
+        .word   0x00cf00b0      @ strheq  r0, [pc], #0
+        .word   0x00df00b0	@ ldrheq  r0, [pc], #0
+        .word   0x00dfffff	@ ldrsheq pc, [pc], #255
+        .word   0x00ffffff      @ ldrsheq pc, [pc, #255]
+        .word   0x0000f0b0      @ strheq  pc, [r0], -r0
+        .word   0x000ff0be      @ strheq  pc, [pc], -lr
+        .word   0xe16fff10      @ clz     pc, r0
+        .word   0xe16f0f1f      @ clz     r0, r15
+
+        .word   0xe99f0001      @ ldmib   r15, { r0 }
+        .word   0xe9910000      @ ldmib   r1, { }
+        .word   0xe89f0002      @ ldmia   pc, { r1 }
+        .word   0xe93f0004      @ ldmdb   r15!, { r2 }
+        .word   0xe83f0008      @ ldmda   pc!, { r3 }
+
+        ldrb    pc, [r0, r1]
+        ldrbt   pc, [r0], r1
+        ldrh    pc, [r0, r1]
+        ldrsb   pc, [r0, r1]
+        ldrsb   pc, [r0], -r0
+        ldrsh   pc, [r0, r1]
+        ldrt    pc, [r0], r1
+
+        .word   0xe020f291      @ mla     r0, r1, r2, pc
+        .word   0xe0202f91      @ mla     r0, r1, pc, r2
+        .word   0xe020219f      @ mla     r0, pc, r1, r2
+        .word   0xe02f2190      @ mla     pc, r0, r1, r2
+        @ .word   0xe0202190      @ mla     r0, r0, r1, r2
+				  
+        mrs     pc, cpsr	  
+				  
+        mul     r0, r1, pc	  
+        .word   0xe001009f      @ mul     r0, pc, r1
+        .word   0xe00f0091      @ mul     pc, r1, r0
+        @ .word   0xe0010091      @ mul     r1, r1, r0
+				  
+        .word   0xe0e21f93      @ smlal   r1, r2, r3, pc
+        .word   0xe0e2149f      @ smlal   r1, r2, pc, r4
+        .word   0xe0ef1493      @ smlal   r1, pc, r3, r4
+        .word   0xe0e2f493      @ smlal   pc, r2, r3, r4
+        @ .word   0xe0e11493      @ smlal   r1, r1, r3, r4
+        @ .word   0xe0e21492      @ smlal   r1, r2, r2, r4
+        @ .word   0xe0e21491      @ smlal   r1, r2, r1, r4
+ 				  
+        .word   0xe0c21f93      @ smull   r1, r2, r3, pc
+        .word   0xe0c2149f      @ smull   r1, r2, pc, r4
+        .word   0xe0cf1493      @ smull   r1, pc, r3, r4
+        .word   0xe0c2f493      @ smull   pc, r2, r3, r4
+        @ .word   0xe0c11493      @ smull   r1, r1, r3, r4
+        @ .word   0xe0c21492      @ smull   r1, r2, r2, r4
+        @ .word   0xe0c21491      @ smull   r1, r2, r1, r4
+				  
+        .word   0xe98f0004      @ stmib   r15, { r2 }
+        .word   0xe88f0008      @ stmia   r15, { r3 }
+        .word   0xe92f0010      @ stmdb   r15!, { r4 }
+        .word   0xe82f0020      @ stmda   r15!, { r5 }
+
+        strb    pc, [r0, r1]
+        strbt   pc, [r0], r1
+        strh    pc, [r0, r1]
+
+        .word   0xe103f092      @ swp     r15, r2, [r3]
+        .word   0xe103109f      @ swp     r1, r15, [r3]
+        .word   0xe10f1092      @ swp     r1, r2, [r15]
+        @ .word   0xe1031093      @ swp     r1, r3, [r3]
+        @ .word   0xe1033092      @ swp     r3, r2, [r3]
+				  
+        .word   0xe143f092      @ swpb    r15, r2, [r3]
+        .word   0xe143109f      @ swpb    r1, r15, [r3]
+        .word   0xe14f1092      @ swpb    r1, r2, [r15]
+        @ .word   0xe1431093      @ swpb    r1, r3, [r3]
+        @ .word   0xe1433092      @ swpb    r3, r2, [r3]
+				  
+        .word   0xe0a21f93      @ umlal   r1, r2, r3, r15
+        .word   0xe0a2149f      @ umlal   r1, r2, r15, r4
+        .word   0xe0af1493      @ umlal   r1, r15, r3, r4
+        .word   0xe0a2f493      @ umlal   r15, r2, r3, r4
+        @ .word   0xe0a11493      @ umlal   r1, r1, r3, r4
+        @ .word   0xe0a21491      @ umlal   r1, r2, r1, r4
+        @ .word   0xe0a21492      @ umlal   r1, r2, r2, r4
+				  
+        .word   0xe0821f93      @ umull   r1, r2, r3, r15
+        .word   0xe082149f      @ umull   r1, r2, r15, r4
+        .word   0xe08f1493      @ umull   r1, r15, r3, r4
+        .word   0xe082f493      @ umull   r15, r2, r3, r4
+        @ .word   0xe0811493      @ umull   r1, r1, r3, r4
+        @ .word   0xe0821491      @ umull   r1, r2, r1, r4
+        @ .word   0xe0821492      @ umull   r1, r2, r2, r4