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Fix a bug in tilegx_fixup_pcrel_references... 

Fix a bug in tilegx_fixup_pcrel_references, to properly match and
fixup the second instruction of the instruction sequence to generate a
pc relative address.

	* config/tilegx/tilegx.c (match_pcrel_step2): Fix instruction
	pattern.
	(replace_mov_pcrel_step2): Ditto.

From-SVN: r184582
This commit is contained in:
Walter Lee 2012-02-26 07:56:56 +00:00 committed by Walter Lee
parent f6d2bbbadc
commit 7afd1a8e94
2 changed files with 25 additions and 7 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2012-02-26 Walter Lee <walt@tilera.com>
* config/tilegx/tilegx.c (match_pcrel_step2): Fix instruction
pattern.
(replace_mov_pcrel_step2): Ditto.
2012-02-25 Alexandre Oliva <aoliva@redhat.com>
PR debug/52001

26
gcc/config/tilegx/tilegx.c
View File

@ -4420,7 +4420,9 @@ replace_mov_pcrel_step1 (rtx insn)
static bool
match_pcrel_step2 (rtx insn)
{
rtx src;
rtx unspec;
rtx addr;
if (TARGET_32BIT)
{
if (recog_memoized (insn) != CODE_FOR_insn_addr_shl16insli_32bit)
@ -4432,11 +4434,12 @@ match_pcrel_step2 (rtx insn)
return false;
}
src = SET_SRC (PATTERN (insn));
unspec = SET_SRC (PATTERN (insn));
addr = XVECEXP (unspec, 0, 1);
return (GET_CODE (src) == CONST
&& GET_CODE (XEXP (src, 0)) == UNSPEC
&& XINT (XEXP (src, 0), 1) == UNSPEC_HW0_PCREL);
return (GET_CODE (addr) == CONST
&& GET_CODE (XEXP (addr, 0)) == UNSPEC
&& XINT (XEXP (addr, 0), 1) == UNSPEC_HW0_PCREL);
}
@ -4446,6 +4449,7 @@ replace_mov_pcrel_step2 (rtx insn)
{
rtx pattern = PATTERN (insn);
rtx unspec;
rtx addr;
rtx opnds[3];
rtx new_insns;
rtx got_rtx = tilegx_got_rtx ();
@ -4453,10 +4457,18 @@ replace_mov_pcrel_step2 (rtx insn)
gcc_assert (GET_CODE (pattern) == SET);
opnds[0] = SET_DEST (pattern);
unspec = XEXP (SET_SRC (pattern), 0);
unspec = SET_SRC (pattern);
gcc_assert (GET_CODE (unspec) == UNSPEC);
gcc_assert (XINT (unspec, 1) == UNSPEC_INSN_ADDR_SHL16INSLI);
opnds[1] = XVECEXP (unspec, 0, 0);
addr = XVECEXP (unspec, 0, 1);
gcc_assert (GET_CODE (addr) == CONST);
unspec = XEXP (addr, 0);
gcc_assert (GET_CODE (unspec) == UNSPEC);
gcc_assert (XINT (unspec, 1) == UNSPEC_HW0_PCREL);
opnds[1] = XEXP (XEXP (SET_SRC (pattern), 0), 0);
opnds[2] = XVECEXP (unspec, 0, 0);
/* We only need to replace SYMBOL_REFs, not LABEL_REFs. */