[binutils-gdb] Fix gdb.arch/powerpc-power7.exp isel disassembly output.

[binutils-gdb] Fix gdb.arch/powerpc-power7.exp isel disassembly output.

[Carl Love]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=cb50b0722c08b50f9693d7722426bdd0275d3841

commit cb50b0722c08b50f9693d7722426bdd0275d3841
Author: Carl Love <cel@us.ibm.com>
Date:   Tue Jun 7 17:26:34 2022 -0500

    Fix gdb.arch/powerpc-power7.exp isel disassembly output.
    
    The following commit changes the output format for the isel instruction on
    PowerPC.
    
       commit dd4832bf3efc1bd1797a6b9188260692b8b0db52     Introduces error in test
       Author: Dmitry Selyutin <ghostmansd@gmail.com>
       Date:   Tue May 24 13:46:35 2022 +0000
    
           opcodes: introduce BC field; fix isel
    
           Per Power ISA Version 3.1B 3.3.12, isel uses BC field rather than CRB
           field present in binutils sources. Also, per 1.6.2, BC has the same
           semantics as BA and BB fields, so this should keep the same flags and
           mask, only with the different offset.
    
           opcodes/
                   * ppc-opc.c
                   (BC): Define new field, with the same definition as CRB field,
                   but with the PPC_OPERAND_CR_BIT flag present.
           gas/
                   * testsuite/gas/ppc/476.d: Update.
                   * testsuite/gas/ppc/a2.d: Update.
                   * testsuite/gas/ppc/e500.d: Update.
                   * testsuite/gas/ppc/power7.d: Update.
      <snip>
       --- a/gas/testsuite/gas/ppc/476.d
       +++ b/gas/testsuite/gas/ppc/476.d
       @@ -209,7 +209,7 @@ Disassembly of section \.text:
        .*:    (7c 20 07 8c|8c 07 20 7c)       ici     1
        .*:    (7c 03 27 cc|cc 27 03 7c)       icread  r3,r4
        .*:    (50 83 65 36|36 65 83 50)       rlwimi  r3,r4,12,20,27
        -.*:    (7c 43 27 1e|1e 27 43 7c)       isel    r2,r3,r4,28
        +.*:    (7c 43 27 1e|1e 27 43 7c)       isel    r2,r3,r4,4\*cr7\+lt
    
    The above change breaks the gdb regression test gdb.arch/powerpc-power7.exp
    on Power 7, Power 8, Power 9 and Power 10.
    
    This patch updates the regression test gdb.arch/powerpc-power7.exp with
    the new expected output for the isel instruction.
    
    The patch has been tested on Power 7 and Power 10 to verify the patch fixes
    the test.

Diff:
---
 gdb/testsuite/gdb.arch/powerpc-power7.exp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gdb/testsuite/gdb.arch/powerpc-power7.exp b/gdb/testsuite/gdb.arch/powerpc-power7.exp
index f2f4525cd6e..10f7eebefc9 100644
--- a/gdb/testsuite/gdb.arch/powerpc-power7.exp
+++ b/gdb/testsuite/gdb.arch/powerpc-power7.exp
@@ -140,7 +140,7 @@ func_check "frsqrte f14,f15"
 func_check "frsqrte. f14,f15"
 func_check "frsqrtes f14,f15"
 func_check "frsqrtes. f14,f15"
-func_check "isel    r2,r3,r4,28"
+func_check "isel    r2,r3,r4,4*cr7+lt"
 func_check "yield"
 func_check "ori     r2,r2,0"
 func_check "nop"