[committed][gdb/testsuite] Require is_amd64_regs_target in gdb.base/disasm-optim.exp

[Tom de Vries <tdevries@suse.de>]

Hi,

When running test-case gdb.base/disasm-optim.exp with target board unix/-m32,
we get:
...
 Running disasm-optim.exp ...
 gdb compile failed, disasm-optim.c: Assembler messages:
 disasm-optim.c:35: Error: bad register name `%rip)'
 disasm-optim.c:46: Error: bad register name `%rax)'
 disasm-optim.c:57: Error: bad register name `%rip)'

                 === gdb Summary ===

 # of untested testcases         1
...

Fix this by requiring is_amd64_regs_target instead of istarget
"x86_64-*-linux*".

Tested on x86_64-linux.

Committed to trunk.

Thanks,
- Tom

[gdb/testsuite] Require is_amd64_regs_target in gdb.base/disasm-optim.exp

gdb/testsuite/ChangeLog:

2021-01-12  Tom de Vries  <tdevries@suse.de>

	* gdb.base/disasm-optim.exp: Require is_amd64_regs_target.

---
 gdb/testsuite/gdb.base/disasm-optim.exp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gdb/testsuite/gdb.base/disasm-optim.exp b/gdb/testsuite/gdb.base/disasm-optim.exp
index 9acbbe86f15..ebb0d1f35f0 100644
--- a/gdb/testsuite/gdb.base/disasm-optim.exp
+++ b/gdb/testsuite/gdb.base/disasm-optim.exp
@@ -15,7 +15,7 @@
 
 # This test exercises disassemble /s with optimized and inlined code.
 
-if { ![istarget "x86_64-*-linux*"] } {
+if { ![is_amd64_regs_target] } {
     continue
 }