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[PATCH 1/4] [RS6000] Simplify setting of fixed_regs[RS6000_PIC_OFFSET_TABLE_REGNUM]
- From: Alan Modra <amodra at gmail dot com>
- To: gcc-patches at gcc dot gnu dot org
- Cc: David Edelsohn <dje dot gcc at gmail dot com>
- Date: Mon, 21 Mar 2016 23:36:12 +1030
- Subject: [PATCH 1/4] [RS6000] Simplify setting of fixed_regs[RS6000_PIC_OFFSET_TABLE_REGNUM]
- Authentication-results: sourceware.org; auth=none
- References: <20160321130459 dot GL22605 at bubble dot grove dot modra dot org>
This makes the conditions look the same as other places that deal with
RS6000_PIC_OFFSET_TABLE_REGNUM, eg. first_reg_to_save. No functional
changes.
* config/rs6000/rs6000.c (rs6000_conditional_register_usage):
Remove redundant PIC_OFFSET_TABLE_REGNUM test. Replace with
flag_pic test for Darwin.
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index fd4b7cc..0e570e4 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -8629,21 +8629,16 @@ rs6000_conditional_register_usage (void)
if (DEFAULT_ABI == ABI_AIX || DEFAULT_ABI == ABI_ELFv2)
call_really_used_regs[2] = 0;
- if (DEFAULT_ABI == ABI_V4
- && PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM
- && flag_pic == 2)
+ if (DEFAULT_ABI == ABI_V4 && flag_pic == 2)
fixed_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] = 1;
- if (DEFAULT_ABI == ABI_V4
- && PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM
- && flag_pic == 1)
+ if (DEFAULT_ABI == ABI_V4 && flag_pic == 1)
fixed_regs[RS6000_PIC_OFFSET_TABLE_REGNUM]
= call_used_regs[RS6000_PIC_OFFSET_TABLE_REGNUM]
= call_really_used_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] = 1;
- if (DEFAULT_ABI == ABI_DARWIN
- && PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM)
- fixed_regs[RS6000_PIC_OFFSET_TABLE_REGNUM]
+ if (DEFAULT_ABI == ABI_DARWIN && flag_pic)
+ fixed_regs[RS6000_PIC_OFFSET_TABLE_REGNUM]
= call_used_regs[RS6000_PIC_OFFSET_TABLE_REGNUM]
= call_really_used_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] = 1;
--
Alan Modra
Australia Development Lab, IBM