From: Marcin Ślusarz <marcin.slusarz@intel.com>
Date: Thu, 30 Jul 2020 14:32:16 +0000 (+0200)
Subject: intel/fs,vec4: remove unused assignments
X-Git-Url: https://git.libre-soc.org/?p=mesa.git;a=commitdiff_plain;h=ed9ac3d60cffc60d97f5ddc168643ed7656224bf

intel/fs,vec4: remove unused assignments

Reported by Coverity.

Signed-off-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6126>
---

diff --git a/src/intel/compiler/brw_fs_nir.cpp b/src/intel/compiler/brw_fs_nir.cpp
index 99cb0e720f2..49fafe1417a 100644
--- a/src/intel/compiler/brw_fs_nir.cpp
+++ b/src/intel/compiler/brw_fs_nir.cpp
@@ -1030,10 +1030,10 @@ fs_visitor::nir_emit_alu(const fs_builder &bld, nir_alu_instr *instr,
             continue;
 
          if (instr->op == nir_op_mov) {
-            inst = bld.MOV(offset(temp, bld, i),
+            bld.MOV(offset(temp, bld, i),
                            offset(op[0], bld, instr->src[0].swizzle[i]));
          } else {
-            inst = bld.MOV(offset(temp, bld, i),
+            bld.MOV(offset(temp, bld, i),
                            offset(op[i], bld, instr->src[i].swizzle[0]));
          }
       }
diff --git a/src/intel/compiler/brw_vec4_nir.cpp b/src/intel/compiler/brw_vec4_nir.cpp
index 4ba23d15774..8ba60cb8b2c 100644
--- a/src/intel/compiler/brw_vec4_nir.cpp
+++ b/src/intel/compiler/brw_vec4_nir.cpp
@@ -2203,32 +2203,29 @@ vec4_visitor::shuffle_64bit_data(dst_reg dst, src_reg src, bool for_write,
                                    vec4_builder(this).at(block, ref->next);
 
    /* Resolve swizzle in src */
-   vec4_instruction *inst;
    if (src.swizzle != BRW_SWIZZLE_XYZW) {
       dst_reg data = dst_reg(this, glsl_type::dvec4_type);
-      inst = bld.MOV(data, src);
+      bld.MOV(data, src);
       src = src_reg(data);
    }
 
    /* dst+0.XY = src+0.XY */
-   inst = bld.group(4, 0).MOV(writemask(dst, WRITEMASK_XY), src);
+   bld.group(4, 0).MOV(writemask(dst, WRITEMASK_XY), src);
 
    /* dst+0.ZW = src+1.XY */
-   inst = bld.group(4, for_write ? 1 : 0)
+   bld.group(4, for_write ? 1 : 0)
              .MOV(writemask(dst, WRITEMASK_ZW),
                   swizzle(byte_offset(src, REG_SIZE), BRW_SWIZZLE_XYXY));
 
    /* dst+1.XY = src+0.ZW */
-   inst = bld.group(4, for_write ? 0 : 1)
+   bld.group(4, for_write ? 0 : 1)
             .MOV(writemask(byte_offset(dst, REG_SIZE), WRITEMASK_XY),
                  swizzle(src, BRW_SWIZZLE_ZWZW));
 
    /* dst+1.ZW = src+1.ZW */
-   inst = bld.group(4, 1)
+   return bld.group(4, 1)
              .MOV(writemask(byte_offset(dst, REG_SIZE), WRITEMASK_ZW),
                  byte_offset(src, REG_SIZE));
-
-   return inst;
 }
 
 }