Previously, fs_inst::regs_read() fell back to depending on the register
width for the second source. This isn't really correct since it isn't a
SIMD8 value at all, but a SIMD4x2 value. This commit changes it to
explicitly be always one register.
---
src/mesa/drivers/dri/i965/brw_fs.cpp | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp
b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 37b6d0d..ce56657 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -763,6 +763,12 @@ fs_inst::regs_read(int arg) const
return exec_size / 4;
break;
+ case FS_OPCODE_UNIFORM_PULL_CONSTANT_LOAD_GEN7:
+ /* The second argument is a single SIMD4x2 register */
+ if (arg == 1)
+ return 1;
+ break;
+
default:
if (is_tex() && arg == 0 && src[0].file == GRF)
return mlen;
--
2.4.3
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