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| author | Tejas Belagod <tejas.belagod@arm.com> | 2021-04-09 12:29:32 +0100 |
|---|---|---|
| committer | Tamar Christina <tamar.christina@arm.com> | 2021-04-09 12:32:00 +0100 |
| commit | dd17020328b4ebf45be26eed156fba3d269096f6 (patch) | |
| tree | 7379b8370b03e1789cb7c12b3d0e0920f8c291a8 /gas/ChangeLog | |
| parent | 52efda8266cb1f8ade0193f45801fdd6e42165ac (diff) | |
| download | gdb-dd17020328b4ebf45be26eed156fba3d269096f6.zip gdb-dd17020328b4ebf45be26eed156fba3d269096f6.tar.gz gdb-dd17020328b4ebf45be26eed156fba3d269096f6.tar.bz2 | |
AArch64: Fix Diagnostic messaging for LD/ST Exclusive.
A summary of what this patch set fixes:
For instructions
STXR w0,x2,[x0]
STLXR w0,x2,[x0]
The warning we emit currently is misleading:
Warning: unpredictable: identical transfer and status registers --`stlxr w0,x2,[x0]'
Warning: unpredictable: identical transfer and status registers --`stxr w0,x2,[x0]'
it ought to be:
Warning: unpredictable: identical base and status registers --`stlxr w0,x2,[x0]'
Warning: unpredictable: identical base and status registers --`stxr w0,x2,[x0]'
For instructions:
ldaxp x0,x0,[x0]
ldxp x0,x0,[x0]
The warning we emit is incorrect
Warning: unpredictable: identical transfer and status registers --`ldaxp x0,x0,[x0]'
Warning: unpredictable: identical transfer and status registers --`ldxp x0,x0,[x0]'
it ought to be:
Warning: unpredictable load of register pair -- `ldaxp x0,x0,[x0]'
Warning: unpredictable load of register pair -- `ldxp x0,x0,[x0]'
For instructions
stlxp w0, x2, x2, [x0]
stxp w0, x2, x2, [x0]
We don't emit any warning when it ought to be:
Warning: unpredictable: identical base and status registers --`stlxp w0,x2,x2,[x0]'
Warning: unpredictable: identical base and status registers --`stxp w0,x2,x2,[x0]'
gas/ChangeLog:
2021-04-09 Tejas Belagod <tejas.belagod@arm.com>
* config/tc-aarch64.c (warn_unpredictable_ldst): Clean-up diagnostic messages
for LD/ST Exclusive instructions.
* testsuite/gas/aarch64/diagnostic.s: Add a diagnostic test for STLXP.
* testsuite/gas/aarch64/diagnostic.l: Fix-up test after message clean-up.
Diffstat (limited to 'gas/ChangeLog')
| -rw-r--r-- | gas/ChangeLog | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 4efdc33..13e4272 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,10 @@ +2021-04-09 Tejas Belagod <tejas.belagod@arm.com> + + * config/tc-aarch64.c (warn_unpredictable_ldst): Clean-up diagnostic messages + for LD/ST Exclusive instructions. + * testsuite/gas/aarch64/diagnostic.s: Add a diagnostic test for STLXP. + * testsuite/gas/aarch64/diagnostic.l: Fix-up test after message clean-up. + 2021-04-09 Alan Modra <amodra@gmail.com> * testsuite/gas/ppc/prefix-pcrel.d: Update expected output. |