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| author | Michael Stapelberg <stapelberg@debian.org> | 2013-03-04 21:27:36 +0100 |
|---|---|---|
| committer | Michael Stapelberg <michael@stapelberg.de> | 2013-03-04 21:27:36 +0100 |
| commit | 04b08da9af0c450d645ab7389d1467308cfc2db8 (patch) | |
| tree | db247935fa4f2f94408edc3acd5d0d4f997aa0d8 /src/cmd/6c/peep.c | |
| parent | 917c5fb8ec48e22459d77e3849e6d388f93d3260 (diff) | |
| download | golang-upstream/1.1_hg20130304.tar.gz | |
Imported Upstream version 1.1~hg20130304upstream/1.1_hg20130304
Diffstat (limited to 'src/cmd/6c/peep.c')
| -rw-r--r-- | src/cmd/6c/peep.c | 40 |
1 files changed, 26 insertions, 14 deletions
diff --git a/src/cmd/6c/peep.c b/src/cmd/6c/peep.c index 8b82adbf5..c648d8c00 100644 --- a/src/cmd/6c/peep.c +++ b/src/cmd/6c/peep.c @@ -330,20 +330,7 @@ subprop(Reg *r0) case AIMULW: if(p->to.type != D_NONE) break; - - case ADIVB: - case ADIVL: - case ADIVQ: - case ADIVW: - case AIDIVB: - case AIDIVL: - case AIDIVQ: - case AIDIVW: - case AIMULB: - case AMULB: - case AMULL: - case AMULQ: - case AMULW: + goto giveup; case AROLB: case AROLL: @@ -369,6 +356,23 @@ subprop(Reg *r0) case ASHRL: case ASHRQ: case ASHRW: + if(p->from.type == D_CONST) + break; + goto giveup; + + case ADIVB: + case ADIVL: + case ADIVQ: + case ADIVW: + case AIDIVB: + case AIDIVL: + case AIDIVQ: + case AIDIVW: + case AIMULB: + case AMULB: + case AMULL: + case AMULQ: + case AMULW: case AREP: case AREPN: @@ -383,6 +387,8 @@ subprop(Reg *r0) case AMOVSB: case AMOVSL: case AMOVSQ: + case AMOVQL: + giveup: return 0; case AMOVL: @@ -581,6 +587,7 @@ copyu(Prog *p, Adr *v, Adr *s) case AMOVWLZX: case AMOVWQSX: case AMOVWQZX: + case AMOVQL: case AMOVSS: case AMOVSD: @@ -695,6 +702,11 @@ copyu(Prog *p, Adr *v, Adr *s) case ACMPB: case ACMPQ: + case APREFETCHT0: + case APREFETCHT1: + case APREFETCHT2: + case APREFETCHNTA: + case ACOMISD: case ACOMISS: case AUCOMISD: |