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Diffstat (limited to 'src/runtime/sys_windows_amd64.s')
| -rw-r--r-- | src/runtime/sys_windows_amd64.s | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/runtime/sys_windows_amd64.s b/src/runtime/sys_windows_amd64.s index 6d26bd3447..4a14b45c63 100644 --- a/src/runtime/sys_windows_amd64.s +++ b/src/runtime/sys_windows_amd64.s @@ -29,6 +29,11 @@ TEXT runtime·asmstdcall(SB),NOSPLIT,$16 SUBQ $(const_maxArgs*8), SP // room for args + // Fast version, do not store args on the stack nor + // load them into registers. + CMPL CX, $0 + JE docall + // Fast version, do not store args on the stack. CMPL CX, $4 JLE loadregs @@ -59,6 +64,7 @@ loadregs: MOVQ R8, X2 MOVQ R9, X3 +docall: // Call stdcall function. CALL AX |