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| author | Will Newton <willnewton@sourceware.org> | 2013-08-23 07:16:56 +0000 |
|---|---|---|
| committer | Will Newton <willnewton@sourceware.org> | 2013-08-23 07:16:56 +0000 |
| commit | 4f2374c7fa5f1f91a59f11670d1c8c269624a15d (patch) | |
| tree | a7788bcce7094bd1f5f87f43e2024809bc638887 /gas/config | |
| parent | 1ed3ee940d6f75b32502801cd6a50322488ff277 (diff) | |
| download | gdb-4f2374c7fa5f1f91a59f11670d1c8c269624a15d.zip gdb-4f2374c7fa5f1f91a59f11670d1c8c269624a15d.tar.gz gdb-4f2374c7fa5f1f91a59f11670d1c8c269624a15d.tar.bz2 | |
gas/config/tc-arm.c: Improve validation of NEON addressing modes.
NEON vector load and store instructions do not accept immediates
or pre-indexed base plus offset addressing modes, so make sure that
the assembler enforces this.
gas/ChangeLog:
2013-08-23 Will Newton <will.newton@linaro.org>
* config/tc-arm.c (do_neon_ldx_stx): Add extra constraints
for pre-indexed addressing modes.
* testsuite/gas/arm/neon-addressing-bad.l: Add test for
VLDn and VSTn instructions.
* testsuite/gas/arm/neon-addressing-bad.s: Likewise.
gas/testsuite/ChangeLog:
2013-08-23 Will Newton <will.newton@linaro.org>
* testsuite/gas/arm/neon-addressing-bad.l: Add test for
VLDn and VSTn instructions.
* testsuite/gas/arm/neon-addressing-bad.s: Likewise.
Diffstat (limited to 'gas/config')
| -rw-r--r-- | gas/config/tc-arm.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c index 21369d7..50e0da7 100644 --- a/gas/config/tc-arm.c +++ b/gas/config/tc-arm.c @@ -16008,12 +16008,20 @@ do_neon_ldx_stx (void) _("bad register for post-index")); inst.instruction |= postreg; } - else if (inst.operands[1].writeback) + else { - inst.instruction |= 0xd; + constraint (inst.operands[1].immisreg, BAD_ADDR_MODE); + constraint (inst.reloc.exp.X_op != O_constant + || inst.reloc.exp.X_add_number != 0, + BAD_ADDR_MODE); + + if (inst.operands[1].writeback) + { + inst.instruction |= 0xd; + } + else + inst.instruction |= 0xf; } - else - inst.instruction |= 0xf; if (thumb_mode) inst.instruction |= 0xf9000000; |