[dev.power64] runtime: don't fault on runtime.procyield, just return

LGTM=dave, rsc
R=rsc, iant, dave
CC=golang-codereviews
https://golang.org/cl/128230044

diff --git a/src/pkg/runtime/asm_power64x.s b/src/pkg/runtime/asm_power64x.s
index 1a72b1b3c2d9d8175082291882e0adf20597c7ab..a0511de8e6ae3b1edc4d8db5127752051bc3aabc 100644 (file)
--- a/src/pkg/runtime/asm_power64x.s
+++ b/src/pkg/runtime/asm_power64x.s
@@ -547,7 +547,7 @@ TEXT runtime·xchgp(SB), NOSPLIT, $0-16
        BR      runtime·xchg64(SB)
 
 TEXT runtime·procyield(SB),NOSPLIT,$0-0
-       MOVD    R0, 17(R0)
+       RETURN
 
 TEXT runtime·atomicstorep(SB), NOSPLIT, $0-16
        BR      runtime·atomicstore64(SB)