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authorTom de Vries <tom@codesourcery.com>2014-04-25 11:21:29 +0000
committerTom de Vries <vries@gcc.gnu.org>2014-04-25 11:21:29 +0000
commit3ee634fd7b20399a1470db1a1e18d423ab761cf7 (patch)
tree2cbd65d2af6f152f169bea0e663cb80ed2e8365b /gcc
parent356bf5934944d4259bf8feffed3f749c71fc2e37 (diff)
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Register CALL_INSN_FUNCTION_USAGE in find_all_hard_reg_sets
2014-04-25 Tom de Vries <tom@codesourcery.com> * rtlanal.c (find_all_hard_reg_sets): Note INSN_CALL_FUNCTION_USAGE clobbers. From-SVN: r209799
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/rtlanal.c10
2 files changed, 13 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4a0af82..21f9b2f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2014-04-25 Tom de Vries <tom@codesourcery.com>
+
+ * rtlanal.c (find_all_hard_reg_sets): Note INSN_CALL_FUNCTION_USAGE
+ clobbers.
+
2014-04-25 Radovan Obradovic <robradovic@mips.com>
Tom de Vries <tom@codesourcery.com>
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c
index 284c475..f3471b1 100644
--- a/gcc/rtlanal.c
+++ b/gcc/rtlanal.c
@@ -1052,8 +1052,14 @@ find_all_hard_reg_sets (const_rtx insn, HARD_REG_SET *pset, bool implicit)
CLEAR_HARD_REG_SET (*pset);
note_stores (PATTERN (insn), record_hard_reg_sets, pset);
- if (implicit && CALL_P (insn))
- IOR_HARD_REG_SET (*pset, call_used_reg_set);
+ if (CALL_P (insn))
+ {
+ if (implicit)
+ IOR_HARD_REG_SET (*pset, call_used_reg_set);
+
+ for (link = CALL_INSN_FUNCTION_USAGE (insn); link; link = XEXP (link, 1))
+ record_hard_reg_sets (XEXP (link, 0), NULL, pset);
+ }
for (link = REG_NOTES (insn); link; link = XEXP (link, 1))
if (REG_NOTE_KIND (link) == REG_INC)
record_hard_reg_sets (XEXP (link, 0), NULL, pset);