The following patch avoids overaligned types created from IPA parameter
replacement. It is said to help mipsel which still suffers from the
backend-looks-at-type-alignment-for-parameter-passing-ABI bug.
Bootstrap and regtest pending on x86_64-unknown-linux-gnu.
mips testing appreciated.
Richard.
2016-08-05 Richard Biener <rguent...@suse.de>
PR ipa/68273
* ipa-prop.c (ipa_modify_formal_parameters): Build
parameter types with natural alignment also for the
over-aligned case.
Index: gcc/ipa-prop.c
===================================================================
--- gcc/ipa-prop.c (revision 239164)
+++ gcc/ipa-prop.c (working copy)
@@ -3910,7 +3909,7 @@ ipa_modify_formal_parameters (tree fndec
if (is_gimple_reg_type (ptype))
{
unsigned malign = GET_MODE_ALIGNMENT (TYPE_MODE (ptype));
- if (TYPE_ALIGN (ptype) < malign)
+ if (TYPE_ALIGN (ptype) != malign)
ptype = build_aligned_type (ptype, malign);
}
}
