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-rw-r--r--src/mesa/program/program_parse.y2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mesa/program/program_parse.y b/src/mesa/program/program_parse.y
index 4f958a99388..54b17314a3a 100644
--- a/src/mesa/program/program_parse.y
+++ b/src/mesa/program/program_parse.y
@@ -382,6 +382,8 @@ ARL_instruction: ARL maskedAddrReg ',' scalarSrcReg
VECTORop_instruction: VECTOR_OP maskedDstReg ',' swizzleSrcReg
{
+ if ($1.Opcode == OPCODE_DDY)
+ state->fragment.UsesDFdy = 1;
$$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
}
;