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gas/config/tc-arm.c: Fix parsing of NEON load/store element sizes. 

The existing code would accept VLD2.64 and similar undefined
instructions.

gas/ChangeLog:

2013-09-16  Will Newton  <will.newton@linaro.org>

	* config/tc-arm.c (do_neon_ld_st_interleave): Add constraint
	disallowing element size 64 with interleave other than 1.

gas/testsuite/ChangeLog:

2013-09-16  Will Newton  <will.newton@linaro.org>

	* gas/arm/neon-ldst-es.d: Add VLD1.64 instructions.
	* gas/arm/neon-ldst-es.s: Likewise.
	* testsuite/gas/arm/neon-ldst-es-bad.d: New file.
	* testsuite/gas/arm/neon-ldst-es-bad.l: Likewise.
	* testsuite/gas/arm/neon-ldst-es-bad.s: Likewise.
This commit is contained in:
Will Newton 2013-09-16 09:34:30 +00:00
parent fe75ecec82
commit 1d50d57ca2
8 changed files with 47 additions and 0 deletions
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5
gas/ChangeLog
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@ -1,3 +1,8 @@
2013-09-16 Will Newton <will.newton@linaro.org>
* config/tc-arm.c (do_neon_ld_st_interleave): Add constraint
disallowing element size 64 with interleave other than 1.
2013-09-12 Chao-ying Fu <Chao-ying.Fu@imgtec.com>
* config/tc-mips.c (match_insn): Set error when $31 is used for

2
gas/config/tc-arm.c
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@ -15783,6 +15783,8 @@ do_neon_ld_st_interleave (void)
typebits = typetable[idx];
constraint (typebits == -1, _("bad list type for instruction"));
constraint (((inst.instruction >> 8) & 3) && et.size == 64,
_("bad element type for instruction"));
inst.instruction &= ~0xf00;
inst.instruction |= typebits << 8;

8
gas/testsuite/ChangeLog
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@ -1,3 +1,11 @@
2013-09-16 Will Newton <will.newton@linaro.org>
* gas/arm/neon-ldst-es.d: Add VLD1.64 instructions.
* gas/arm/neon-ldst-es.s: Likewise.
* testsuite/gas/arm/neon-ldst-es-bad.d: New file.
* testsuite/gas/arm/neon-ldst-es-bad.l: Likewise.
* testsuite/gas/arm/neon-ldst-es-bad.s: Likewise.
2013-09-12 Chao-ying Fu <Chao-ying.Fu@imgtec.com>
* gas/mips/bltzal.s: New file.

3
gas/testsuite/gas/arm/neon-ldst-es-bad.d Normal file
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@ -0,0 +1,3 @@
# name: Bad element size combinations in Neon load/store instructions
# as: -mfpu=neon
# error-output: neon-ldst-es-bad.l

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gas/testsuite/gas/arm/neon-ldst-es-bad.l Normal file
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@ -0,0 +1,12 @@
[^:]*: Assembler messages:
[^:]*:2: Error: bad type in Neon instruction -- `vld1\.64 {d0\[1\]},\[r0\]'
[^:]*:3: Error: bad type in Neon instruction -- `vld1\.64 {d0\[\]},\[r0\]'
[^:]*:4: Error: bad type in Neon instruction -- `vld2\.64 {d0\[1\]},\[r0\]'
[^:]*:5: Error: bad type in Neon instruction -- `vld2\.64 {d0\[\]},\[r0\]'
[^:]*:6: Error: bad element type for instruction -- `vld2\.64 {d0-d1},\[r0\]'
[^:]*:7: Error: bad type in Neon instruction -- `vld3\.64 {d0\[1\]},\[r0\]'
[^:]*:8: Error: bad type in Neon instruction -- `vld3\.64 {d0\[\]},\[r0\]'
[^:]*:9: Error: bad element type for instruction -- `vld3\.64 {d0-d2},\[r0\]'
[^:]*:10: Error: bad type in Neon instruction -- `vld4\.64 {d0\[1\]},\[r0\]'
[^:]*:11: Error: bad type in Neon instruction -- `vld4\.64 {d0\[\]},\[r0\]'
[^:]*:12: Error: bad element type for instruction -- `vld4\.64 {d0-d3},\[r0\]'

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gas/testsuite/gas/arm/neon-ldst-es-bad.s Normal file
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@ -0,0 +1,12 @@
.text
vld1.64 {d0[1]}, [r0]
vld1.64 {d0[]}, [r0]
vld2.64 {d0[1]}, [r0]
vld2.64 {d0[]}, [r0]
vld2.64 {d0-d1}, [r0]
vld3.64 {d0[1]}, [r0]
vld3.64 {d0[]}, [r0]
vld3.64 {d0-d2}, [r0]
vld4.64 {d0[1]}, [r0]
vld4.64 {d0[]}, [r0]
vld4.64 {d0-d3}, [r0]

2
gas/testsuite/gas/arm/neon-ldst-es.d
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@ -56,3 +56,5 @@ Disassembly of section \.text:
0[0-9a-f]+ <[^>]+> f427208f vld4\.32 {d2-d5}, \[r7\]
0[0-9a-f]+ <[^>]+> f467c08f vld4\.32 {d28-d31}, \[r7\]
0[0-9a-f]+ <[^>]+> f4a21c83 vld1\.32 {d1\[\]}, \[r2\], r3
0[0-9a-f]+ <[^>]+> f42007cf vld1\.64 {d0}, \[r0\]
0[0-9a-f]+ <[^>]+> f42002cf vld1\.64 {d0-d3}, \[r0\]

3
gas/testsuite/gas/arm/neon-ldst-es.s
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@ -60,3 +60,6 @@
@ PR 14987 and 14887: Allow for whitespace in the instruction.
vld1.32 { d1 [ ] } , [ r2 ] , r3
vld1.64 {d0}, [r0]
vld1.64 {d0-d3}, [r0]