Mesa (master): i965/fs: Use inst-> regs_written for rlen for texture instructions

[Kenneth Graunke]

Module: Mesa
Branch: master
Commit: acc2f1fe361af87ce4d50b7e2b58e0da093477e1
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=acc2f1fe361af87ce4d50b7e2b58e0da093477e1

Author: Jason Ekstrand <jason.ekstrand at intel.com>
Date:   Fri Oct  9 11:24:35 2015 -0700

i965/fs: Use inst->regs_written for rlen for texture instructions

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen at intel.com>

---

 src/mesa/drivers/dri/i965/brw_fs.cpp           |  1 +
 src/mesa/drivers/dri/i965/brw_fs_generator.cpp | 11 ++---------
 2 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 5d6a107..81ec18d 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -2534,6 +2534,7 @@ fs_visitor::opt_sampler_eot()
    tex_inst->offset |= fb_write->target << 24;
    tex_inst->eot = true;
    tex_inst->dst = ibld.null_reg_ud();
+   tex_inst->regs_written = 0;
    fb_write->remove(cfg->blocks[cfg->num_blocks - 1]);
 
    /* If a header is present, marking the eot is sufficient. Otherwise, we need
diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
index 812a75e..8654ca4 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
@@ -731,7 +731,6 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src
                            struct brw_reg sampler_index)
 {
    int msg_type = -1;
-   int rlen = 4;
    uint32_t simd_mode;
    uint32_t return_format;
    bool is_combined_send = inst->eot;
@@ -920,15 +919,9 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src
    assert(msg_type != -1);
 
    if (simd_mode == BRW_SAMPLER_SIMD_MODE_SIMD16) {
-      rlen = 8;
       dst = vec16(dst);
    }
 
-   if (is_combined_send) {
-      assert(devinfo->gen >= 9 || devinfo->is_cherryview);
-      rlen = 0;
-   }
-
    assert(devinfo->gen < 7 || inst->header_size == 0 ||
           src.file == BRW_GENERAL_REGISTER_FILE);
 
@@ -995,7 +988,7 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src
                  surface + base_binding_table_index,
                  sampler % 16,
                  msg_type,
-                 rlen,
+                 inst->regs_written,
                  inst->mlen,
                  inst->header_size != 0,
                  simd_mode,
@@ -1032,7 +1025,7 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src
                               0 /* surface */,
                               0 /* sampler */,
                               msg_type,
-                              rlen,
+                              inst->regs_written,
                               inst->mlen /* mlen */,
                               inst->header_size != 0 /* header */,
                               simd_mode,