remove a memset too and yes, this is all functionally identical

---
 src/mesa/main/shaderapi.c | 40 ++++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c
index e8acca4490..1d0ca5374b 100644
--- a/src/mesa/main/shaderapi.c
+++ b/src/mesa/main/shaderapi.c
@@ -241,11 +241,10 @@ _mesa_init_shader_state(struct gl_context *ctx)
    /* Device drivers may override these to control what kind of instructions
     * are generated by the GLSL compiler.
     */
-   struct gl_shader_compiler_options options;
+   struct gl_shader_compiler_options options = {};
    gl_shader_stage sh;
    int i;

-   memset(&options, 0, sizeof(options));
    options.MaxUnrollIterations = 32;
    options.MaxIfDepth = UINT_MAX;

@@ -254,7 +253,7 @@ _mesa_init_shader_state(struct gl_context *ctx)

    ctx->Shader.Flags = _mesa_get_shader_flags();

-   if (ctx->Shader.Flags != 0)
+   if (ctx->Shader.Flags)
       ctx->Const.GenerateTemporaryNames = true;

    /* Extended for ARB_separate_shader_objects */
@@ -771,7 +770,8 @@ get_programiv(struct gl_context *ctx, GLuint program, 
GLenum pname,
               GLint *params)
 {
    struct gl_shader_program *shProg
-      = _mesa_lookup_shader_program_err(ctx, program, 
"glGetProgramiv(program)");
+      = _mesa_lookup_shader_program_err(ctx, program,
+                                        "glGetProgramiv(program)");

    /* Is transform feedback available in this context?
     */
@@ -953,7 +953,7 @@ get_programiv(struct gl_context *ctx, GLuint program, 
GLenum pname,
       *params = shProg->BinaryRetreivableHint;
       return;
    case GL_PROGRAM_BINARY_LENGTH:
-      if (ctx->Const.NumProgramBinaryFormats == 0) {
+      if (!ctx->Const.NumProgramBinaryFormats) {
          *params = 0;
       } else {
          _mesa_get_program_binary_length(ctx, shProg, params);
@@ -974,7 +974,7 @@ get_programiv(struct gl_context *ctx, GLuint program, 
GLenum pname,
                      "linked)");
          return;
       }
-      if (shProg->_LinkedShaders[MESA_SHADER_COMPUTE] == NULL) {
+      if (!shProg->_LinkedShaders[MESA_SHADER_COMPUTE]) {
          _mesa_error(ctx, GL_INVALID_OPERATION, "glGetProgramiv(no compute "
                      "shaders)");
          return;
@@ -1234,7 +1234,7 @@ _mesa_compile_shader(struct gl_context *ctx, struct 
gl_shader *sh)
    } else {
       if (ctx->_Shader->Flags & GLSL_DUMP) {
          _mesa_log("GLSL source for %s shader %d:\n",
-                 _mesa_shader_stage_to_string(sh->Stage), sh->Name);
+                   _mesa_shader_stage_to_string(sh->Stage), sh->Name);
          _mesa_log("%s\n", sh->Source);
       }

@@ -1381,13 +1381,13 @@ link_program(struct gl_context *ctx, struct 
gl_shader_program *shProg,
       GLuint i;

       printf("Link %u shaders in program %u: %s\n",
-                   shProg->NumShaders, shProg->Name,
-                   shProg->data->LinkStatus ? "Success" : "Failed");
+             shProg->NumShaders, shProg->Name,
+             shProg->data->LinkStatus ? "Success" : "Failed");

       for (i = 0; i < shProg->NumShaders; i++) {
          printf(" shader %u, stage %u\n",
-                      shProg->Shaders[i]->Name,
-                      shProg->Shaders[i]->Stage);
+                shProg->Shaders[i]->Name,
+                shProg->Shaders[i]->Stage);
       }
    }
 }
@@ -1460,7 +1460,7 @@ void
 _mesa_active_program(struct gl_context *ctx, struct gl_shader_program *shProg,
                     const char *caller)
 {
-   if ((shProg != NULL) && !shProg->data->LinkStatus) {
+   if ((shProg) && !shProg->data->LinkStatus) {
       _mesa_error(ctx, GL_INVALID_OPERATION,
                  "%s(program %u not linked)", caller, shProg->Name);
       return;
@@ -1794,7 +1794,7 @@ void GLAPIENTRY
 _mesa_GetObjectParameterfvARB(GLhandleARB object, GLenum pname,
                               GLfloat *params)
 {
-   GLint iparams[1] = {0};  /* XXX is one element enough? */
+   GLint iparams[1] = {};  /* XXX is one element enough? */
    _mesa_GetObjectParameterivARB(object, pname, iparams);
    params[0] = (GLfloat) iparams[0];
 }
@@ -1912,7 +1912,7 @@ shader_source(struct gl_context *ctx, GLuint shaderObj, 
GLsizei count,
       if (!sh)
          return;

-      if (string == NULL) {
+      if (!string) {
          _mesa_error(ctx, GL_INVALID_VALUE, "glShaderSourceARB");
          return;
       }
@@ -1925,7 +1925,7 @@ shader_source(struct gl_context *ctx, GLuint shaderObj, 
GLsizei count,
     * last element will be set to the total length of the source code.
     */
    offsets = malloc(count * sizeof(GLint));
-   if (offsets == NULL) {
+   if (!offsets) {
       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glShaderSourceARB");
       return;
    }
@@ -1952,7 +1952,7 @@ shader_source(struct gl_context *ctx, GLuint shaderObj, 
GLsizei count,
     */
    totalLength = offsets[count - 1] + 2;
    source = malloc(totalLength * sizeof(GLcharARB));
-   if (source == NULL) {
+   if (!source) {
       free((GLvoid *) offsets);
       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glShaderSourceARB");
       return;
@@ -2245,7 +2245,7 @@ _mesa_GetProgramBinary(GLuint program, GLsizei bufSize, 
GLsizei *length,
     * Ensure that length always points to valid storage to avoid multiple NULL
     * pointer checks below.
     */
-   if (length == NULL)
+   if (!length)
       length = &length_dummy;


@@ -2263,7 +2263,7 @@ _mesa_GetProgramBinary(GLuint program, GLsizei bufSize, 
GLsizei *length,
       return;
    }

-   if (ctx->Const.NumProgramBinaryFormats == 0) {
+   if (!ctx->Const.NumProgramBinaryFormats) {
       *length = 0;
       _mesa_error(ctx, GL_INVALID_OPERATION,
                   "glGetProgramBinary(driver supports zero binary formats)");
@@ -2858,7 +2858,7 @@ _mesa_UniformSubroutinesuiv(GLenum shadertype, GLsizei 
count,
    bool flushed = false;
    do {
       struct gl_uniform_storage *uni = p->sh.SubroutineUniformRemapTable[i];
-      if (uni == NULL) {
+      if (!uni) {
          i++;
          continue;
       }
@@ -3054,7 +3054,7 @@ _mesa_shader_write_subroutine_index(struct gl_context 
*ctx,
 {
    int i, j;

-   if (p->sh.NumSubroutineUniformRemapTable == 0)
+   if (!p->sh.NumSubroutineUniformRemapTable)
       return;

    i = 0;
-- 
2.14.1
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