diff --git a/src/amd/vulkan/nir/radv_nir_lower_poly_line_smooth.c b/src/amd/vulkan/nir/radv_nir_lower_poly_line_smooth.c
index 48ebaa6b9db..f75a9611cca 100644
--- a/src/amd/vulkan/nir/radv_nir_lower_poly_line_smooth.c
+++ b/src/amd/vulkan/nir/radv_nir_lower_poly_line_smooth.c
@@ -34,8 +34,6 @@ radv_should_lower_poly_line_smooth(nir_shader *nir, const struct radv_pipeline_k
    if (!key->ps.line_smooth_enabled && !key->dynamic_line_rast_mode)
       return false;
 
-   nir_builder b = nir_builder_create(impl);
-
    nir_foreach_block (block, impl) {
       nir_foreach_instr (instr, block) {
          if (instr->type != nir_instr_type_intrinsic)
diff --git a/src/compiler/nir/nir_lower_mediump.c b/src/compiler/nir/nir_lower_mediump.c
index 692d5310309..b1c6df228cd 100644
--- a/src/compiler/nir/nir_lower_mediump.c
+++ b/src/compiler/nir/nir_lower_mediump.c
@@ -286,8 +286,6 @@ nir_force_mediump_io(nir_shader *nir, nir_variable_mode modes,
    nir_function_impl *impl = nir_shader_get_entrypoint(nir);
    assert(impl);
 
-   nir_builder b = nir_builder_create(impl);
-
    nir_foreach_block_safe (block, impl) {
       nir_foreach_instr_safe (instr, block) {
          nir_variable_mode mode;
diff --git a/src/compiler/nir/nir_lower_shader_calls.c b/src/compiler/nir/nir_lower_shader_calls.c
index 762db4be44b..cf276114b84 100644
--- a/src/compiler/nir/nir_lower_shader_calls.c
+++ b/src/compiler/nir/nir_lower_shader_calls.c
@@ -1970,8 +1970,6 @@ nir_lower_shader_calls(nir_shader *shader,
 {
    nir_function_impl *impl = nir_shader_get_entrypoint(shader);
 
-   nir_builder b = nir_builder_create(impl);
-
    int num_calls = 0;
    nir_foreach_block(block, impl) {
       nir_foreach_instr_safe(instr, block) {
diff --git a/src/gallium/drivers/r600/sfn/sfn_nir_lower_64bit.cpp b/src/gallium/drivers/r600/sfn/sfn_nir_lower_64bit.cpp
index 1b581010e1f..bbaa68d9e0d 100644
--- a/src/gallium/drivers/r600/sfn/sfn_nir_lower_64bit.cpp
+++ b/src/gallium/drivers/r600/sfn/sfn_nir_lower_64bit.cpp
@@ -1067,8 +1067,6 @@ r600_nir_64_to_vec2(nir_shader *sh)
    nir_foreach_function(function, sh)
    {
       if (function->impl) {
-         nir_builder b = nir_builder_create(function->impl);
-
          nir_foreach_block(block, function->impl)
          {
             nir_foreach_instr_safe(instr, block)
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 99427650603..ad5990ceb63 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -1539,8 +1539,6 @@ static bool si_nir_kill_outputs(nir_shader *nir, const union si_shader_key *key)
 
    bool progress = false;
 
-   nir_builder b = nir_builder_create(impl);
-
    nir_foreach_block(block, impl) {
       nir_foreach_instr_safe(instr, block) {
          if (instr->type != nir_instr_type_intrinsic)
diff --git a/src/gallium/drivers/zink/zink_compiler.c b/src/gallium/drivers/zink/zink_compiler.c
index 638f93a27d2..5ded6a7bc28 100644
--- a/src/gallium/drivers/zink/zink_compiler.c
+++ b/src/gallium/drivers/zink/zink_compiler.c
@@ -380,7 +380,6 @@ static bool
 lower_gl_point_gs(nir_shader *shader)
 {
    struct lower_gl_point_state state;
-   nir_builder b;
 
    shader->info.gs.output_primitive = MESA_PRIM_TRIANGLE_STRIP;
    shader->info.gs.vertices_out *= 4;
@@ -397,10 +396,6 @@ lower_gl_point_gs(nir_shader *shader)
    if (!state.gl_pos_out || !state.gl_point_size)
       return false;
 
-   nir_function_impl *entry = nir_shader_get_entrypoint(shader);
-   b = nir_builder_create(entry);
-   b.cursor = nir_before_cf_list(&entry->body);
-
    return nir_shader_instructions_pass(shader, lower_gl_point_gs_instr,
                                        nir_metadata_dominance, &state);
 }
diff --git a/src/microsoft/clc/clc_compiler.c b/src/microsoft/clc/clc_compiler.c
index 6801724da29..d40e9a63b3d 100644
--- a/src/microsoft/clc/clc_compiler.c
+++ b/src/microsoft/clc/clc_compiler.c
@@ -456,8 +456,6 @@ clc_lower_constant_to_ssbo(nir_shader *nir,
 
       assert(func->impl);
 
-      nir_builder b = nir_builder_create(func->impl);
-
       nir_foreach_block(block, func->impl) {
          nir_foreach_instr(instr, block) {
             if (instr->type != nir_instr_type_deref)
diff --git a/src/panfrost/midgard/nir_fuse_io_16.c b/src/panfrost/midgard/nir_fuse_io_16.c
index 37eb51ce77d..28f1fcf44c4 100644
--- a/src/panfrost/midgard/nir_fuse_io_16.c
+++ b/src/panfrost/midgard/nir_fuse_io_16.c
@@ -53,8 +53,6 @@ nir_fuse_io_16(nir_shader *shader)
       if (!function->impl)
          continue;
 
-      nir_builder b = nir_builder_create(function->impl);
-
       nir_foreach_block(block, function->impl) {
          nir_foreach_instr_safe(instr, block) {
             if (instr->type != nir_instr_type_intrinsic)