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sparc.c (parc_delegitimize_address): Recognize the GOT register and decoded HIGH/LO_SUM combinations for labels in... 

* config/sparc/sparc.c (parc_delegitimize_address): Recognize the GOT
	register and decoded HIGH/LO_SUM combinations for labels in PIC mode.

From-SVN: r268145
This commit is contained in:
Eric Botcazou 2019-01-22 10:20:00 +00:00 committed by Eric Botcazou
parent a14e30837f
commit d0b042c68a
2 changed files with 21 additions and 10 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2019-01-22 Eric Botcazou <ebotcazou@adacore.com>
* config/sparc/sparc.c (parc_delegitimize_address): Recognize the GOT
register and decoded HIGH/LO_SUM combinations for labels in PIC mode.
2019-01-22 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/88044

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

@ -4995,17 +4995,23 @@ sparc_delegitimize_address (rtx x)
/* This is generated by mov{si,di}_pic_label_ref in PIC mode. */
if (GET_CODE (x) == MINUS
&& sparc_pic_register_p (XEXP (x, 0))
&& GET_CODE (XEXP (x, 1)) == LO_SUM
&& GET_CODE (XEXP (XEXP (x, 1), 1)) == UNSPEC
&& XINT (XEXP (XEXP (x, 1), 1), 1) == UNSPEC_MOVE_PIC_LABEL)
&& (XEXP (x, 0) == global_offset_table_rtx
|| sparc_pic_register_p (XEXP (x, 0))))
{
x = XVECEXP (XEXP (XEXP (x, 1), 1), 0, 0);
gcc_assert (GET_CODE (x) == LABEL_REF
|| (GET_CODE (x) == CONST
&& GET_CODE (XEXP (x, 0)) == PLUS
&& GET_CODE (XEXP (XEXP (x, 0), 0)) == LABEL_REF
&& GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT));
rtx y = XEXP (x, 1);
if (GET_CODE (y) == LO_SUM)
y = XEXP (y, 1);
if (GET_CODE (y) == UNSPEC && XINT (y, 1) == UNSPEC_MOVE_PIC_LABEL)
{
x = XVECEXP (y, 0, 0);
gcc_assert (GET_CODE (x) == LABEL_REF
|| (GET_CODE (x) == CONST
&& GET_CODE (XEXP (x, 0)) == PLUS
&& GET_CODE (XEXP (XEXP (x, 0), 0)) == LABEL_REF
&& GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT));
}
}
return x;