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PR gas/12915
	* config/tc-mips.c (append_insn): Only consider hazards between the
	pre-noreorder block and ip.

gas/testsuite/
	* gas/mips/pr12915.s, gas/mips/pr12915.d: New test.
	* gas/mips/mips.exp: Run it.
This commit is contained in:
Richard Sandiford
2011-06-23 20:21:38 +00:00
parent 6e586cc565
commit f77ef3e29a
6 changed files with 45 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
gas/ChangeLog
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@ -1,3 +1,9 @@
2011-06-23 Richard Sandiford <rdsandiford@googlemail.com>
PR gas/12915
* config/tc-mips.c (append_insn): Only consider hazards between the
pre-noreorder block and ip.
2011-06-21 Sameera Deshpande <sameera.deshpande@arm.com> 2011-06-21 Sameera Deshpande <sameera.deshpande@arm.com>
* config/tc-arm.c (vfp_conv): Add check on range of immediate operand * config/tc-arm.c (vfp_conv): Add check on range of immediate operand

14
gas/config/tc-mips.c
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@ -3154,8 +3154,18 @@ append_insn (struct mips_cl_insn *ip, expressionS *address_expr,
} }
else if (mips_relax.sequence != 2 && prev_nop_frag != NULL) else if (mips_relax.sequence != 2 && prev_nop_frag != NULL)
{ {
/* Work out how many nops in prev_nop_frag are needed by IP. */ struct mips_cl_insn stubbed_history[ARRAY_SIZE (history)];
int nops = nops_for_insn_or_target (history, ip); int nops, i;
/* Work out how many nops in prev_nop_frag are needed by IP.
Base this on a history in which all insns since prev_nop_frag
are stubbed out with nops. */
for (i = 0; i < (int) ARRAY_SIZE (history); i++)
if (i < prev_nop_frag_since)
stubbed_history[i] = *NOP_INSN;
else
stubbed_history[i] = history[i];
nops = nops_for_insn_or_target (stubbed_history, ip);
gas_assert (nops <= prev_nop_frag_holds); gas_assert (nops <= prev_nop_frag_holds);
/* Enforce NOPS as a minimum. */ /* Enforce NOPS as a minimum. */

5
gas/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2011-06-23 Richard Sandiford <rdsandiford@googlemail.com>
* gas/mips/pr12915.s, gas/mips/pr12915.d: New test.
* gas/mips/mips.exp: Run it.
2011-06-21 Sameera Deshpande <sameera.deshpande@arm.com> 2011-06-21 Sameera Deshpande <sameera.deshpande@arm.com>
* gas/arm/vcvt-bad.d: New test. * gas/arm/vcvt-bad.d: New test.

2
gas/testsuite/gas/mips/mips.exp
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@ -1000,4 +1000,6 @@ if { [istarget mips*-*-vxworks*] } {
[mips_arch_list_matching mips32r2] ] ] [mips_arch_list_matching mips32r2] ] ]
if $has_newabi { run_dump_test "cfi-n64-1" } if $has_newabi { run_dump_test "cfi-n64-1" }
run_dump_test "pr12915"
} }

15
gas/testsuite/gas/mips/pr12915.d Normal file
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@ -0,0 +1,15 @@
#as: -32 -mips1
#objdump: -dr
.*
Disassembly of section \.text:
00000000 <\.text>:
0: 3c1b0000 lui k1,0x0
0: R_MIPS_HI16 kernelsp
4: 8f7b0000 lw k1,0\(k1\)
4: R_MIPS_LO16 kernelsp
8: 401c7000 mfc0 gp,c0_epc
c: 279c0004 addiu gp,gp,4

5
gas/testsuite/gas/mips/pr12915.s Normal file
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@ -0,0 +1,5 @@
lui $27, %hi(kernelsp)
lw $27, %lo(kernelsp)($27)
.set noreorder
mfc0 $28, $14
addu $28, 4