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authorlaw <law@138bc75d-0d04-0410-961f-82ee72b054a4>2000-04-24 08:46:15 +0000
committerlaw <law@138bc75d-0d04-0410-961f-82ee72b054a4>2000-04-24 08:46:15 +0000
commit527e5b29a6a7492063b72cd005a654b227d9666e (patch)
tree262d3f900521d615abb6c7007c1407d3f485d8e8 /gcc/combine.c
parent2cbea1dc8a8cd9862b787628d0b420ffb510929e (diff)
downloadgcc-527e5b29a6a7492063b72cd005a654b227d9666e.tar.gz
* combine.c (try_combine): Update reg_nonzero_bits of
newi2pat before newpat. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33376 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/combine.c')
-rw-r--r--gcc/combine.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/gcc/combine.c b/gcc/combine.c
index 4bcaf388115..9396959a67b 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -2714,11 +2714,11 @@ try_combine (i3, i2, i1, new_direct_jump_p)
}
/* Update reg_nonzero_bits et al for any changes that may have been made
- to this insn. */
-
- note_stores (newpat, set_nonzero_bits_and_sign_copies, NULL);
+ to this insn. The order of set_nonzero_bits_and_sign_copies() is
+ important. Because newi2pat can affect nonzero_bits of newpat */
if (newi2pat)
note_stores (newi2pat, set_nonzero_bits_and_sign_copies, NULL);
+ note_stores (newpat, set_nonzero_bits_and_sign_copies, NULL);
/* Set new_direct_jump_p if a new return or simple jump instruction
has been created.