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* frv.opc (parse_uhi16): Fix handling of %hi operator on 64-bit

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hosts.

	* cgen-asm.c (cgen_parse_signed_integer): Add code to handle the
	sign extension of negative values on a 64-bit host.
	* frv-asm.c: Regenerate.

	* gas/frv/immediates.s: New test file - checks assembly of
	constant values.
	* gas/frv/immediates.d: Expected disassmbly.
	* gas/frv/allinsn.exp: Run the new test.
This commit is contained in:
Nick Clifton 2011-12-15 10:21:51 +00:00
parent 370a075d48
commit 5011093dd0
10 changed files with 78 additions and 16 deletions
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5
cpu/ChangeLog
View File

@ -1,3 +1,8 @@
2011-12-15 Nick Clifton <nickc@redhat.com>
* frv.opc (parse_uhi16): Fix handling of %hi operator on 64-bit
hosts.
2011-10-26 Joern Rennecke <joern.rennecke@embecosm.com>
* epiphany.opc (parse_branch_addr): Fix type of valuep.

10
cpu/frv.opc
View File

@ -1343,11 +1343,11 @@ parse_uhi16 (CGEN_CPU_DESC cd,
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
{
/* If bfd_vma is wider than 32 bits, but we have a sign-
or zero-extension, truncate it. */
if (value >= - ((bfd_vma)1 << 31)
|| value <= ((bfd_vma)1 << 31) - (bfd_vma)1)
value &= (((bfd_vma)1 << 16) << 16) - 1;
/* If value is wider than 32 bits then be
careful about how we extract bits 16-31. */
if (sizeof (value) > 4)
value &= (((bfd_vma)1 << 16) << 16) - 1;
value >>= 16;
}
*valuep = value;

11
gas/config/tc-arm.c
View File

@ -3540,6 +3540,7 @@ s_arm_unwind_fnend (int ignored ATTRIBUTE_UNUSED)
record_alignment (now_seg, 2);
ptr = frag_more (8);
memset (ptr, 0, 8);
where = frag_now_fix () - 8;
/* Self relative offset of the function start. */
@ -19926,8 +19927,12 @@ create_unwind_entry (int have_data)
size = unwind.opcode_count - 2;
}
else
/* An extra byte is required for the opcode count. */
size = unwind.opcode_count + 1;
{
gas_assert (unwind.personality_index == -1);
/* An extra byte is required for the opcode count. */
size = unwind.opcode_count + 1;
}
size = (size + 3) >> 2;
if (size > 0xff)
@ -19953,7 +19958,7 @@ create_unwind_entry (int have_data)
ptr += 4;
/* Set the first byte to the number of additional words. */
data = size - 1;
data = size > 0 ? size - 1 : 0;
n = 3;
break;

7
gas/testsuite/ChangeLog
View File

@ -1,3 +1,10 @@
2011-12-15 Nick Clifton <nickc@redhat.com>
* gas/frv/immediates.s: New test file - checks assembly of
constant values.
* gas/frv/immediates.d: Expected disassembly.
* gas/frv/allinsn.exp: Run the new test.
2011-12-14 Stuart Henderson <shenders@gcc.gnu.org>
* gas/bfin/move.d: Update SRCx field expectations.

2
gas/testsuite/gas/frv/allinsn.exp
View File

@ -17,4 +17,6 @@ if [istarget frv*-*-*] {
run_list_test "fr450-media-issue" "-mcpu=fr450"
run_dump_test "fr550-pack1"
run_dump_test "immediates"
}

12
gas/testsuite/gas/frv/immediates.d Normal file
View File

@ -0,0 +1,12 @@
#as:
#objdump: -d
#name: Parsing immediate values
.*: +file format .*
Disassembly of section \.text:
00000000 <foo>:
0:[ ]+86 fc e0 00[ ]+setlos 0xff+e000,gr3
4:[ ]+08 f8 3f ff[ ]+sethi.p 0x3fff,gr4

9
gas/testsuite/gas/frv/immediates.s Normal file
View File

@ -0,0 +1,9 @@
;; These instructions can be found in the FRV Linux kernel.
;; They used to fail to assemble on 64-bit host machines
;; because of sign-extension problems.
.text
.global foo
foo:
setlos #0xffffe000, gr3
sethi.p %hi(~(0x80000000 | 0x40000000)), gr4

6
opcodes/ChangeLog
View File

@ -1,3 +1,9 @@
2011-12-15 Nick Clifton <nickc@redhat.com>
* cgen-asm.c (cgen_parse_signed_integer): Add code to handle the
sign extension of negative values on a 64-bit host.
* frv-asm.c: Regenerate.
2011-12-13 Alan Modra <amodra@gmail.com>
* ppc-opc.c (ISA_V2): Define and use for relevant BO field tests.

22
opcodes/cgen-asm.c
View File

@ -1,6 +1,6 @@
/* CGEN generic assembler support code.
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2007
Free Software Foundation, Inc.
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2007,
2011 Free Software Foundation, Inc.
This file is part of libopcodes.
@ -268,7 +268,23 @@ cgen_parse_signed_integer (CGEN_CPU_DESC cd,
&result, &value);
/* FIXME: Examine `result'. */
if (!errmsg)
*valuep = value;
{
/* Handle the case where a hex value is parsed on a 64-bit host.
A value like 0xffffe000 is clearly intended to be a negative
16-bit value, but on a 64-bit host it will be parsed by gas
as 0x00000000ffffe000.
The shifts below are designed not to produce compile time
warnings on a 32-bit host. */
if (sizeof (value) > 4
&& result == CGEN_PARSE_OPERAND_RESULT_NUMBER
&& value > 0
&& (value & 0x80000000)
&& ((value >> 31) == 1))
value |= -1 << 31;
*valuep = value;
}
return errmsg;
}

10
opcodes/frv-asm.c
View File

@ -465,11 +465,11 @@ parse_uhi16 (CGEN_CPU_DESC cd,
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
{
/* If bfd_vma is wider than 32 bits, but we have a sign-
or zero-extension, truncate it. */
if (value >= - ((bfd_vma)1 << 31)
|| value <= ((bfd_vma)1 << 31) - (bfd_vma)1)
value &= (((bfd_vma)1 << 16) << 16) - 1;
/* If value is wider than 32 bits then be
careful about how we extract bits 16-31. */
if (sizeof (value) > 4)
value &= (((bfd_vma)1 << 16) << 16) - 1;
value >>= 16;
}
*valuep = value;