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-rw-r--r--src/mesa/shader/prog_execute.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/shader/prog_execute.c b/src/mesa/shader/prog_execute.c
index 69b81e724a2..192d39aed1e 100644
--- a/src/mesa/shader/prog_execute.c
+++ b/src/mesa/shader/prog_execute.c
@@ -939,7 +939,7 @@ _mesa_execute_program(GLcontext * ctx,
/* The fast LOG2 macro doesn't meet the precision requirements.
*/
if (a[0] == 0.0F) {
- val = 0.0F;
+ val = -FLT_MAX;
}
else {
val = log(a[0]) * 1.442695F;