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-rw-r--r--src/mesa/shader/prog_execute.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mesa/shader/prog_execute.c b/src/mesa/shader/prog_execute.c
index ef17ed128a..96a083527f 100644
--- a/src/mesa/shader/prog_execute.c
+++ b/src/mesa/shader/prog_execute.c
@@ -1190,7 +1190,7 @@ _mesa_execute_program(GLcontext * ctx,
fetch_vector4(&inst->SrcReg[0], machine, a);
tmp = a[0] * a[0] + a[1] * a[1] + a[2] * a[2];
if (tmp != 0.0F)
- tmp = 1.0F / tmp;
+ tmp = INV_SQRTF(tmp);
result[0] = tmp * a[0];
result[1] = tmp * a[1];
result[2] = tmp * a[2];
@@ -1205,7 +1205,7 @@ _mesa_execute_program(GLcontext * ctx,
fetch_vector4(&inst->SrcReg[0], machine, a);
tmp = a[0] * a[0] + a[1] * a[1] + a[2] * a[2] + a[3] * a[3];
if (tmp != 0.0F)
- tmp = 1.0F / tmp;
+ tmp = INV_SQRTF(tmp);
result[0] = tmp * a[0];
result[1] = tmp * a[1];
result[2] = tmp * a[2];