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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 | |
| 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')
| -rw-r--r-- | gas/ChangeLog | 5 | ||||
| -rw-r--r-- | gas/config/tc-arm.c | 16 | ||||
| -rw-r--r-- | gas/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gas/testsuite/gas/arm/neon-addressing-bad.l | 22 | ||||
| -rw-r--r-- | gas/testsuite/gas/arm/neon-addressing-bad.s | 4 |
5 files changed, 40 insertions, 13 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index d335c91..fc79d4f 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,8 @@ +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. + 2013-08-21 Alan Modra <amodra@gmail.com> * symbols.c (fb_label_instance_inc, fb_label_instance): Properly 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; diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog index 870158f..219591a 100644 --- a/gas/testsuite/ChangeLog +++ b/gas/testsuite/ChangeLog @@ -1,3 +1,9 @@ +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. + 2013-08-19 Richard Sandiford <rdsandiford@googlemail.com> * gas/mips/ase-errors-1.l, gas/mips/ase-errors-2.l, diff --git a/gas/testsuite/gas/arm/neon-addressing-bad.l b/gas/testsuite/gas/arm/neon-addressing-bad.l index a8bc720..38e1801 100644 --- a/gas/testsuite/gas/arm/neon-addressing-bad.l +++ b/gas/testsuite/gas/arm/neon-addressing-bad.l @@ -12,12 +12,16 @@ [^:]*:14: Error: only loads support such operands -- `vst2.8 {D0\[\].* [^:]*:15: Error: only loads support such operands -- `vst3.16 {D0\[\].* [^:]*:16: Error: only loads support such operands -- `vst4.32 {D0\[\].* -[^:]*:18: Error: r15 not allowed here -- `vld1.8 {d0},2f' -[^:]*:20: Error: r15 not allowed here -- `vld1.8 {D0},R0' -[^:]*:21: Error: r15 not allowed here -- `vld1.8 {Q1},R0' -[^:]*:22: Error: r15 not allowed here -- `vld1.8 {D0},\[PC\]' -[^:]*:23: Error: r15 not allowed here -- `vld1.8 {D0},\[PC,#0\]' -[^:]*:24: Error: r15 not allowed here -- `vst1.8 {D0},R0' -[^:]*:25: Error: r15 not allowed here -- `vst1.8 {Q1},R0' -[^:]*:26: Error: r15 not allowed here -- `vst1.8 {D0},\[PC\]' -[^:]*:27: Error: r15 not allowed here -- `vst1.8 {D0},\[PC,#0\]' +[^:]*:17: Error: instruction does not accept this addressing mode -- `vld1.8 {Q0},\[R0,#8\]' +[^:]*:18: Error: instruction does not accept this addressing mode -- `vld1.8 {Q0},\[R0,#8\]!' +[^:]*:19: Error: instruction does not accept this addressing mode -- `vld1.8 {Q0},\[R0,R1\]' +[^:]*:20: Error: instruction does not accept this addressing mode -- `vld1.8 {Q0},\[R0,R1\]!' +[^:]*:22: Error: r15 not allowed here -- `vld1.8 {d0},2f' +[^:]*:24: Error: r15 not allowed here -- `vld1.8 {D0},R0' +[^:]*:25: Error: r15 not allowed here -- `vld1.8 {Q1},R0' +[^:]*:26: Error: r15 not allowed here -- `vld1.8 {D0},\[PC\]' +[^:]*:27: Error: r15 not allowed here -- `vld1.8 {D0},\[PC,#0\]' +[^:]*:28: Error: r15 not allowed here -- `vst1.8 {D0},R0' +[^:]*:29: Error: r15 not allowed here -- `vst1.8 {Q1},R0' +[^:]*:30: Error: r15 not allowed here -- `vst1.8 {D0},\[PC\]' +[^:]*:31: Error: r15 not allowed here -- `vst1.8 {D0},\[PC,#0\]' diff --git a/gas/testsuite/gas/arm/neon-addressing-bad.s b/gas/testsuite/gas/arm/neon-addressing-bad.s index c27b172..6f7e769 100644 --- a/gas/testsuite/gas/arm/neon-addressing-bad.s +++ b/gas/testsuite/gas/arm/neon-addressing-bad.s @@ -14,6 +14,10 @@ VST1.8 {D0[]}, [R0] VST2.8 {D0[], D2[]}, [R0] VST3.16 {D0[], D1[], D2[]}, [R0] VST4.32 {D0[], D1[], D2[], D3[]}, [R0] +VLD1.8 {Q0}, [R0, #8] +VLD1.8 {Q0}, [R0, #8]! +VLD1.8 {Q0}, [R0, R1] +VLD1.8 {Q0}, [R0, R1]! .thumb VLD1.8 {d0}, 2f 2: |