diff options
Diffstat (limited to 'src/cmd/internal/obj')
| -rw-r--r-- | src/cmd/internal/obj/arm64/obj7.go | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/cmd/internal/obj/arm64/obj7.go b/src/cmd/internal/obj/arm64/obj7.go index a043d0972c..ae8deede3a 100644 --- a/src/cmd/internal/obj/arm64/obj7.go +++ b/src/cmd/internal/obj/arm64/obj7.go @@ -51,6 +51,12 @@ var complements = []obj.As{ ACMNW: ACMPW, } +// noZRreplace is the set of instructions for which $0 in the To operand +// should NOT be replaced with REGZERO. +var noZRreplace = map[obj.As]bool{ + APRFM: true, +} + func (c *ctxt7) stacksplit(p *obj.Prog, framesize int32) *obj.Prog { // MOV g_stackguard(g), RT1 p = obj.Appendp(p, c.newprog) @@ -226,7 +232,7 @@ func progedit(ctxt *obj.Link, p *obj.Prog, newprog obj.ProgAlloc) { p.From.Type = obj.TYPE_REG p.From.Reg = REGZERO } - if p.To.Type == obj.TYPE_CONST && p.To.Offset == 0 { + if p.To.Type == obj.TYPE_CONST && p.To.Offset == 0 && !noZRreplace[p.As] { p.To.Type = obj.TYPE_REG p.To.Reg = REGZERO } |