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* config/tc-ppc.c (ppc_handle_align): Handle power7's group ending nop.

gas/testsuite/
	* gas/ppc/power7.d ("ori", ".p2align"): Add tests for group ending nop.
	* gas/ppc/power7.s: Likewise.
	* gas/ppc/power6.d: Likewise.
	* gas/ppc/power6.s: Likewise.
This commit is contained in:
Peter Bergner 2009-04-01 01:41:07 +00:00
parent 1aa34cc52c
commit 42240548bf
7 changed files with 34 additions and 7 deletions
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4
gas/ChangeLog
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@ -1,3 +1,7 @@
2009-03-31 Peter Bergner <bergner@vnet.ibm.com>
* config/tc-ppc.c (ppc_handle_align): Handle power7's group ending nop.
2009-03-31 Dave Korn <dave.korn.cygwin@gmail.com>
* doc/internals.texi: Fix trivial syntax errors.

20
gas/config/tc-ppc.c
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@ -5687,13 +5687,14 @@ ppc_handle_align (struct frag *fragP)
fragP->fr_var = 4;
md_number_to_chars (dest, 0x60000000, 4);
if ((ppc_cpu & PPC_OPCODE_POWER6) != 0)
if ((ppc_cpu & PPC_OPCODE_POWER6) != 0
|| (ppc_cpu & PPC_OPCODE_POWER7) != 0)
{
/* For power6, we want the last nop to be a group terminating
one, "ori 1,1,0". Do this by inserting an rs_fill frag
immediately after this one, with its address set to the last
nop location. This will automatically reduce the number of
nops in the current frag by one. */
/* For power6 and power7, we want the last nop to be a group
terminating one. Do this by inserting an rs_fill frag immediately
after this one, with its address set to the last nop location.
This will automatically reduce the number of nops in the current
frag by one. */
if (count > 4)
{
struct frag *group_nop = xmalloc (SIZEOF_STRUCT_FRAG + 4);
@ -5707,7 +5708,12 @@ ppc_handle_align (struct frag *fragP)
dest = group_nop->fr_literal;
}
md_number_to_chars (dest, 0x60210000, 4);
if ((ppc_cpu & PPC_OPCODE_POWER7) != 0)
/* power7 group terminating nop: "ori 2,2,0". */
md_number_to_chars (dest, 0x60420000, 4);
else
/* power6 group terminating nop: "ori 1,1,0". */
md_number_to_chars (dest, 0x60210000, 4);
}
}
}

7
gas/testsuite/ChangeLog
View File

@ -1,3 +1,10 @@
2009-03-31 Peter Bergner <bergner@vnet.ibm.com>
* gas/ppc/power7.d ("ori", ".p2align"): Add tests for group ending nop.
* gas/ppc/power7.s: Likewise.
* gas/ppc/power6.d: Likewise.
* gas/ppc/power6.s: Likewise.
2009-03-30 Joseph Myers <joseph@codesourcery.com>
* gas/arm/mapsecs.d, gas/arm/mapsecs.s: New.

2
gas/testsuite/gas/ppc/power6.d
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@ -69,3 +69,5 @@ Disassembly of section \.text:
ec: 7d 6a 02 74 cbcdtd r10,r11
f0: 7d 6a 02 34 cdtbcd r10,r11
f4: 7d 4b 60 94 addg6s r10,r11,r12
f8: 60 21 00 00 ori r1,r1,0
fc: 60 21 00 00 ori r1,r1,0

2
gas/testsuite/gas/ppc/power6.s
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@ -64,3 +64,5 @@ start:
cbcdtd 10,11
cdtbcd 10,11
addg6s 10,11,12
ori 1,1,0
.p2align 4,,15

4
gas/testsuite/gas/ppc/power7.d
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@ -111,3 +111,7 @@ Disassembly of section \.text:
194: ed c0 78 34 frsqrtes f14,f15
198: ed c0 78 35 frsqrtes\. f14,f15
19c: 7c 43 27 1e isel r2,r3,r4,28
1a0: 60 42 00 00 ori r2,r2,0
1a4: 60 00 00 00 nop
1a8: 60 00 00 00 nop
1ac: 60 42 00 00 ori r2,r2,0

2
gas/testsuite/gas/ppc/power7.s
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@ -104,3 +104,5 @@ power7:
frsqrtes 14,15
frsqrtes. 14,15
isel 2,3,4,28
ori 2,2,0
.p2align 4,,15