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| author | Nick Clifton <nickc@redhat.com> | 2010-09-09 09:09:43 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2010-09-09 09:09:43 +0000 |
| commit | 40f246e36c27a521661a926536e1cfceb18cd957 (patch) | |
| tree | 581f4529d737f6663f0555f25416db98717e513d /gas/config/tc-arm.c | |
| parent | 95b75c0115a8dfef2afcefd3db9f191383b7376f (diff) | |
| download | gdb-40f246e36c27a521661a926536e1cfceb18cd957.zip gdb-40f246e36c27a521661a926536e1cfceb18cd957.tar.gz gdb-40f246e36c27a521661a926536e1cfceb18cd957.tar.bz2 | |
* config/tc-arm.c (md_apply_fix): Check if widened add, sub are
flag-setting and handle accordingly.
* gas/arm/addsw-bad.s: New file.
* gas/arm/addsw-bad.l: New file.
* gas/arm/addsw-bad.d: New file.
Diffstat (limited to 'gas/config/tc-arm.c')
| -rw-r--r-- | gas/config/tc-arm.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c index ce32aef..50df78a 100644 --- a/gas/config/tc-arm.c +++ b/gas/config/tc-arm.c @@ -20252,17 +20252,20 @@ md_apply_fix (fixS * fixP, /* Turn add/sum into addw/subw. */ if (fixP->fx_r_type == BFD_RELOC_ARM_T32_ADD_IMM) newval = (newval & 0xfeffffff) | 0x02000000; - - /* 12 bit immediate for addw/subw. */ - if (value < 0) + /* No flat 12-bit imm encoding for addsw/subsw. */ + if ((newval & 0x00100000) == 0) { - value = -value; - newval ^= 0x00a00000; + /* 12 bit immediate for addw/subw. */ + if (value < 0) + { + value = -value; + newval ^= 0x00a00000; + } + if (value > 0xfff) + newimm = (unsigned int) FAIL; + else + newimm = value; } - if (value > 0xfff) - newimm = (unsigned int) FAIL; - else - newimm = value; } if (newimm == (unsigned int)FAIL) |