From 2dc04b4c11a14b6761e5543ad41b5a815abbaf49 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Fri, 10 Aug 2018 15:22:02 -0400
Subject: [PATCH] libm: one more static analysis fix.

---
 src/libm/k_rem_pio2.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/libm/k_rem_pio2.c b/src/libm/k_rem_pio2.c
index d49d78830c8ea..393db541d1850 100644
--- a/src/libm/k_rem_pio2.c
+++ b/src/libm/k_rem_pio2.c
@@ -190,7 +190,9 @@ int32_t attribute_hidden __kernel_rem_pio2(double *x, double *y, int e0, int nx,
 	    iq[i] =  (int32_t)(z-two24*fw);
 	    z     =  q[j-1]+fw;
 	}
-	iq[jz] = 0;
+	if (jz < SDL_arraysize(iq)) {
+        SDL_memset(&iq[jz], 0, sizeof (q) - (jz * sizeof (iq[0])));
+    }
 
     /* compute n */
 	z  = scalbn(z,q0);		/* actual value of z */
@@ -273,6 +275,9 @@ int32_t attribute_hidden __kernel_rem_pio2(double *x, double *y, int e0, int nx,
 	    for(fw=0.0,k=0;k<=jp&&k<=jz-i;k++) fw += PIo2[k]*q[i+k];
 	    fq[jz-i] = fw;
 	}
+	if ((jz+1) < SDL_arraysize(f)) {
+        SDL_memset(&fq[jz+1], 0, sizeof (fq) - ((jz+1) * sizeof (fq[0])));
+    }
 
     /* compress fq[] into y[] */
 	switch(prec) {