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-rw-r--r--src/intel/compiler/brw_shader.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/intel/compiler/brw_shader.cpp b/src/intel/compiler/brw_shader.cpp
index cf04003c9c1..5a3070e5d2e 100644
--- a/src/intel/compiler/brw_shader.cpp
+++ b/src/intel/compiler/brw_shader.cpp
@@ -987,7 +987,8 @@ backend_instruction::writes_accumulator_implicitly(const struct gen_device_info
return writes_accumulator ||
(devinfo->gen < 6 &&
((opcode >= BRW_OPCODE_ADD && opcode < BRW_OPCODE_NOP) ||
- (opcode >= FS_OPCODE_DDX_COARSE && opcode <= FS_OPCODE_LINTERP)));
+ (opcode >= FS_OPCODE_DDX_COARSE && opcode <= FS_OPCODE_LINTERP))) ||
+ (opcode == FS_OPCODE_LINTERP && !devinfo->has_pln);
}
bool