diff options
Diffstat (limited to 'src/cmd')
| -rw-r--r-- | src/cmd/internal/obj/x86/obj6.go | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/cmd/internal/obj/x86/obj6.go b/src/cmd/internal/obj/x86/obj6.go index a071762681..aa4cc225c6 100644 --- a/src/cmd/internal/obj/x86/obj6.go +++ b/src/cmd/internal/obj/x86/obj6.go @@ -614,13 +614,14 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) { var bpsize int if ctxt.Arch.Family == sys.AMD64 && !p.From.Sym.NoFrame() && // (1) below - !(autoffset == 0 && p.From.Sym.NoSplit()) && // (2) below + !(autoffset == 0 && p.From.Sym.NoSplit() && ctxt.Headtype != objabi.Hwindows) && // (2) below !(autoffset == 0 && !hasCall) { // (3) below // Make room to save a base pointer. // There are 2 cases we must avoid: // 1) If noframe is set (which we do for functions which tail call). // 2) Scary runtime internals which would be all messed up by frame pointers. // We detect these using a heuristic: frameless nosplit functions. + // Windows does not use this heuristic anymore. // TODO: Maybe someday we label them all with NOFRAME and get rid of this heuristic. // For performance, we also want to avoid: // 3) Frameless leaf functions |