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| author | aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-02-11 06:07:03 +0000 |
|---|---|---|
| committer | aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-02-11 06:07:03 +0000 |
| commit | de79a9e1dd2c158b3301f7f1f529336e5280a42b (patch) | |
| tree | 3e7fcbfd5aa2fab762cda1114ace46f614b57192 /gcc/combine.c | |
| parent | d688971e960bb1fb416c55a10fb9a83a2c1c2713 (diff) | |
| download | gcc-de79a9e1dd2c158b3301f7f1f529336e5280a42b.tar.gz | |
* combine.c (try_combine): Apply substitutions in
CALL_INSN_FUNCTION_USAGE too.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@49670 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index 269731ff972..ba0bf35d21e 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -1478,6 +1478,7 @@ try_combine (i3, i2, i1, new_direct_jump_p) { /* New patterns for I3 and I2, respectively. */ rtx newpat, newi2pat = 0; + int substed_i2 = 0, substed_i1 = 0; /* Indicates need to preserve SET in I1 or I2 in I3 if it is not dead. */ int added_sets_1, added_sets_2; /* Total number of SETs to put into I3. */ @@ -1939,6 +1940,7 @@ try_combine (i3, i2, i1, new_direct_jump_p) subst_low_cuid = INSN_CUID (i2); newpat = subst (PATTERN (i3), i2dest, i2src, 0, ! i1_feeds_i3 && i1dest_in_i1src); + substed_i2 = 1; /* Record whether i2's body now appears within i3's body. */ i2_is_used = n_occurrences; @@ -1963,6 +1965,7 @@ try_combine (i3, i2, i1, new_direct_jump_p) n_occurrences = 0; subst_low_cuid = INSN_CUID (i1); newpat = subst (newpat, i1dest, i1src, 0, 0); + substed_i1 = 1; } /* Fail if an autoincrement side-effect has been duplicated. Be careful @@ -2534,6 +2537,23 @@ try_combine (i3, i2, i1, new_direct_jump_p) INSN_CODE (i3) = insn_code_number; PATTERN (i3) = newpat; + + if (GET_CODE (i3) == CALL_INSN && CALL_INSN_FUNCTION_USAGE (i3)) + { + rtx call_usage = CALL_INSN_FUNCTION_USAGE (i3); + + reset_used_flags (call_usage); + call_usage = copy_rtx (call_usage); + + if (substed_i2) + replace_rtx (call_usage, i2dest, i2src); + + if (substed_i1) + replace_rtx (call_usage, i1dest, i1src); + + CALL_INSN_FUNCTION_USAGE (i3) = call_usage; + } + if (undobuf.other_insn) INSN_CODE (undobuf.other_insn) = other_code_number; |