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builtins.c (expand_builtin_nonlocal_goto): Avoid evaluating PIC_OFFSET_TABLE_REGNUM twice.

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* builtins.c (expand_builtin_nonlocal_goto): Avoid evaluating
	PIC_OFFSET_TABLE_REGNUM twice.

From-SVN: r241625
This commit is contained in:
Aldy Hernandez 2016-10-27 16:13:19 +00:00 committed by Aldy Hernandez
parent 93f90bec31
commit 959c1e2045
2 changed files with 7 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2016-10-27 Aldy Hernandez <aldyh@redhat.com>
* builtins.c (expand_builtin_nonlocal_goto): Avoid evaluating
PIC_OFFSET_TABLE_REGNUM twice.
2016-10-27 Bin Cheng <bin.cheng@arm.com>
* match.pd ((convert (op:s (convert@2 @0) (convert?@3 @1)))): Add

4
gcc/builtins.c
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@ -1140,8 +1140,8 @@ expand_builtin_nonlocal_goto (tree exp)
to targets with a nonlocal_goto pattern; they are free
to implement it in their own way. Note also that this is
a no-op if the GP register is a global invariant.) */
if ((unsigned) PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM
&& fixed_regs[PIC_OFFSET_TABLE_REGNUM])
unsigned regnum = PIC_OFFSET_TABLE_REGNUM;
if (regnum != INVALID_REGNUM && fixed_regs[regnum])
emit_use (pic_offset_table_rtx);
emit_indirect_jump (r_label);