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cmd/8c: disable use of prefetch with GO386=387 

Fixes #4798.

R=ken2
CC=golang-dev
https://golang.org/cl/7323061
This commit is contained in:
Russ Cox 2013-02-13 21:13:07 -05:00
parent 2968e239b0
commit 594360cb1b
1 changed files with 3 additions and 0 deletions
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3
src/cmd/8c/txt.c
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@ -1396,6 +1396,9 @@ gprefetch(Node *n)
{
Node n1;
if(strcmp(getgo386(), "sse2") != 0) // assume no prefetch on old machines
return;
regalloc(&n1, n, Z);
gmove(n, &n1);
n1.op = OINDREG;