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-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_exec.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index df002939c6b..ea5a44fb8ab 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -958,6 +958,10 @@ fetch_src_file_channel(
switch( file ) {
case TGSI_FILE_CONSTANT:
assert(mach->Consts);
+ assert(index->i[0] >= 0);
+ assert(index->i[1] >= 0);
+ assert(index->i[2] >= 0);
+ assert(index->i[3] >= 0);
chan->f[0] = mach->Consts[index->i[0]][swizzle];
chan->f[1] = mach->Consts[index->i[1]][swizzle];
chan->f[2] = mach->Consts[index->i[2]][swizzle];