Reimplement the post-increment/decrement functions.

Instead of defining functions with an extra dummy parameter to distinguish
from the pre-incr/decr functions, just use new function names: __postIncr
and __postDecr.

3 files changed, 190 insertions, 151 deletions

diff --git a/src/mesa/shader/slang/library/slang_core.gc b/src/mesa/shader/slang/library/slang_core.gc
index 890b38a6c1..d7f0976fde 100644
--- a/src/mesa/shader/slang/library/slang_core.gc
+++ b/src/mesa/shader/slang/library/slang_core.gc
@@ -1973,7 +1973,7 @@ mat4 __operator --(inout mat4 m)
 
 //// pre-increment operators
 
-float __operator ++(inout int a)
+int __operator ++(inout int a)
 {
     a = a + 1;
     __retVal = a;
@@ -2049,105 +2049,135 @@ mat4 __operator ++(inout mat4 m)
 
 
 
+//// post-decrement
 
-//
-// NOTE: post-increment and decrement operators take an additional
-// dummy int parameter to distinguish their prototypes from prefix ones.
-//
-
-float __operator -- (inout float a, const int) {
-    float b = a;
-    --a;
-    return b;
+int __postDecr(inout int a)
+{
+   __retVal = a;
+   a = a - 1;
 }
 
-int __operator -- (inout int a, const int) {
-    int b = a;
-    --a;
-    return b;
+ivec2 __postDecr(inout ivec2 v)
+{
+   __retVal = v;
+   v = v - ivec2(1);
 }
 
-vec2 __operator -- (inout vec2 v, const int) {
-    return vec2 (v.x--, v.y--);
+ivec3 __postDecr(inout ivec3 v)
+{
+   __retVal = v;
+   v = v - ivec3(1);
 }
 
-vec3 __operator -- (inout vec3 v, const int) {
-    return vec3 (v.x--, v.y--, v.z--);
+ivec4 __postDecr(inout ivec4 v)
+{
+   __retVal = v;
+   v = v - ivec4(1);
 }
 
-vec4 __operator -- (inout vec4 v, const int) {
-    return vec4 (v.x--, v.y--, v.z--, v.w--);
-}
 
-ivec2 __operator -- (inout ivec2 v, const int) {
-    return ivec2 (v.x--, v.y--);
+float __postDecr(inout float a)
+{
+   __retVal = v;
+   v = v - 1.0;
 }
 
-ivec3 __operator -- (inout ivec3 v, const int) {
-    return ivec3 (v.x--, v.y--, v.z--);
+vec2 __postDecr(inout vec2 v)
+{
+   __retVal = v;
+   v = v - vec2(1.0);
 }
 
-ivec4 __operator -- (inout ivec4 v, const int) {
-    return ivec4 (v.x--, v.y--, v.z--, v.w--);
+vec3 __postDecr(inout vec3 v)
+{
+   __retVal = v;
+   v = v - vec3(1.0);
 }
 
-mat2 __operator -- (inout mat2 m, const int) {
-    return mat2 (m[0]--, m[1]--);
+vec4 __postDecr(inout vec4 v)
+{
+   __retVal = v;
+   v = v - vec4(1.0);
 }
 
-mat3 __operator -- (inout mat3 m, const int) {
-    return mat3 (m[0]--, m[1]--, m[2]--);
+
+mat2 __postDecr(inout mat2 m)
+{
+   __retVal = m;
+   m[0] = m[0] - vec2(1.0);
+   m[1] = m[1] - vec2(1.0);
 }
 
-mat4 __operator -- (inout mat4 m, const int) {
-    return mat4 (m[0]--, m[1]--, m[2]--, m[3]--);
+mat3 __postDecr(inout mat3 m)
+{
+   __retVal = m;
+   m[0] = m[0] - vec3(1.0);
+   m[1] = m[1] - vec3(1.0);
+   m[2] = m[2] - vec3(1.0);
 }
 
-float __operator ++ (inout float a, const int) {
-    float b = a;
-    ++a;
-    return b;
+mat4 __postDecr(inout mat4 m)
+{
+   __retVal = m;
+   m[0] = m[0] - vec4(1.0);
+   m[1] = m[1] - vec4(1.0);
+   m[2] = m[2] - vec4(1.0);
+   m[3] = m[3] - vec4(1.0);
 }
 
-int __operator ++ (inout int a, const int) {
-    int b = a;
+
+//// post-increment
+
+float __postIncr(inout float a) {
+    float b = a;
     ++a;
     return b;
 }
 
-vec2 __operator ++ (inout vec2 v, const int) {
+vec2 __postIncr(inout vec2 v) {
     return vec2 (v.x++, v.y++);
 }
 
-vec3 __operator ++ (inout vec3 v, const int) {
+vec3 __postIncr(inout vec3 v) {
     return vec3 (v.x++, v.y++, v.z++);
 }
 
-vec4 __operator ++ (inout vec4 v, const int) {
-    return vec4 (v.x++, v.y++, v.z++, v.w++);
+vec4 __postIncr(inout vec4 v)
+{
+   __retVal = v;
+   v = v + vec4(1.0);
+}
+
+
+int __postIncr(inout int a) {
+    int b = a;
+    ++a;
+    return b;
 }
 
-ivec2 __operator ++ (inout ivec2 v, const int) {
+ivec2 __postIncr(inout ivec2 v) {
     return ivec2 (v.x++, v.y++);
 }
 
-ivec3 __operator ++ (inout ivec3 v, const int) {
+ivec3 __postIncr(inout ivec3 v) {
     return ivec3 (v.x++, v.y++, v.z++);
 }
 
-ivec4 __operator ++ (inout ivec4 v, const int) {
+ivec4 __postIncr(inout ivec4 v) {
     return ivec4 (v.x++, v.y++, v.z++, v.w++);
 }
 
-mat2 __operator ++ (inout mat2 m, const int) {
+
+
+mat2 __postIncr(inout mat2 m) {
     return mat2 (m[0]++, m[1]++);
 }
 
-mat3 __operator ++ (inout mat3 m, const int) {
+mat3 __postIncr(inout mat3 m) {
     return mat3 (m[0]++, m[1]++, m[2]++);
 }
 
-mat4 __operator ++ (inout mat4 m, const int) {
+mat4 __postIncr(inout mat4 m) {
     return mat4 (m[0]++, m[1]++, m[2]++, m[3]++);
 }
 
diff --git a/src/mesa/shader/slang/library/slang_core_gc.h b/src/mesa/shader/slang/library/slang_core_gc.h
index fd99ea7759..2787a47d09 100644
--- a/src/mesa/shader/slang/library/slang_core_gc.h
+++ b/src/mesa/shader/slang/library/slang_core_gc.h
@@ -618,7 +618,7 @@
 0,47,20,0,9,18,109,0,16,10,49,0,57,18,109,0,16,10,49,0,57,58,118,101,99,52,0,17,49,0,48,0,0,0,0,47,
 20,0,9,18,109,0,16,10,50,0,57,18,109,0,16,10,50,0,57,58,118,101,99,52,0,17,49,0,48,0,0,0,0,47,20,0,
 9,18,109,0,16,10,51,0,57,18,109,0,16,10,51,0,57,58,118,101,99,52,0,17,49,0,48,0,0,0,0,47,20,0,9,18,
-95,95,114,101,116,86,97,108,0,18,109,0,20,0,0,1,0,9,2,24,1,0,2,5,97,0,0,0,1,9,18,97,0,18,97,0,16,
+95,95,114,101,116,86,97,108,0,18,109,0,20,0,0,1,0,5,2,24,1,0,2,5,97,0,0,0,1,9,18,97,0,18,97,0,16,
 10,49,0,46,20,0,9,18,95,95,114,101,116,86,97,108,0,18,97,0,20,0,0,1,0,6,2,24,1,0,2,6,118,0,0,0,1,9,
 18,118,0,18,118,0,58,105,118,101,99,50,0,16,10,49,0,0,0,46,20,0,9,18,95,95,114,101,116,86,97,108,0,
 18,118,0,20,0,0,1,0,7,2,24,1,0,2,7,118,0,0,0,1,9,18,118,0,18,118,0,58,105,118,101,99,51,0,16,10,49,
@@ -641,93 +641,107 @@
 109,0,16,10,49,0,57,58,118,101,99,52,0,17,49,0,48,0,0,0,0,46,20,0,9,18,109,0,16,10,50,0,57,18,109,
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 10,51,0,57,58,118,101,99,52,0,17,49,0,48,0,0,0,0,46,20,0,9,18,95,95,114,101,116,86,97,108,0,18,109,
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-18,98,0,0,0,1,0,5,2,25,1,0,2,5,97,0,0,1,1,0,5,0,0,0,1,3,2,0,5,1,98,0,2,18,97,0,0,0,9,18,97,0,52,0,
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-0,18,118,0,59,120,0,61,0,18,118,0,59,121,0,61,0,18,118,0,59,122,0,61,0,0,0,0,1,0,12,2,25,1,0,2,12,
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+18,109,0,16,8,48,0,57,0,0,0,9,58,112,114,105,110,116,77,69,83,65,0,18,109,0,16,10,49,0,57,0,0,0,9,
+58,112,114,105,110,116,77,69,83,65,0,18,109,0,16,10,50,0,57,0,0,0,0,1,0,0,0,112,114,105,110,116,77,
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+9,58,112,114,105,110,116,77,69,83,65,0,18,109,0,16,10,49,0,57,0,0,0,9,58,112,114,105,110,116,77,69,
+83,65,0,18,109,0,16,10,50,0,57,0,0,0,9,58,112,114,105,110,116,77,69,83,65,0,18,109,0,16,10,51,0,57,
+0,0,0,0,1,0,0,0,112,114,105,110,116,77,69,83,65,0,1,1,0,16,101,0,0,0,1,4,105,110,116,95,112,114,
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+110,116,95,112,114,105,110,116,0,18,101,0,0,0,0,1,0,0,0,112,114,105,110,116,77,69,83,65,0,1,1,0,18,
 101,0,0,0,1,4,105,110,116,95,112,114,105,110,116,0,18,101,0,0,0,0,1,0,0,0,112,114,105,110,116,77,
-69,83,65,0,1,1,0,18,101,0,0,0,1,4,105,110,116,95,112,114,105,110,116,0,18,101,0,0,0,0,1,0,0,0,112,
-114,105,110,116,77,69,83,65,0,1,1,0,19,101,0,0,0,1,4,105,110,116,95,112,114,105,110,116,0,18,101,0,
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-110,116,0,18,101,0,0,0,0,1,0,0,0,112,114,105,110,116,77,69,83,65,0,1,1,0,21,101,0,0,0,1,4,105,110,
-116,95,112,114,105,110,116,0,18,101,0,0,0,0,0
+69,83,65,0,1,1,0,19,101,0,0,0,1,4,105,110,116,95,112,114,105,110,116,0,18,101,0,0,0,0,1,0,0,0,112,
+114,105,110,116,77,69,83,65,0,1,1,0,20,101,0,0,0,1,4,105,110,116,95,112,114,105,110,116,0,18,101,0,
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+110,116,0,18,101,0,0,0,0,0
diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c
index 26a65e722c..7872d0ce8f 100644
--- a/src/mesa/shader/slang/slang_codegen.c
+++ b/src/mesa/shader/slang/slang_codegen.c
@@ -2019,24 +2019,19 @@ _slang_gen_operation(slang_assemble_ctx * A, slang_operation *oper)
       return new_float_literal(oper->literal[0], 0, 0, 0);
 
    case slang_oper_postincrement:   /* var++ */
-      /* XXX not 100% about this */
       {
-	 slang_ir_node *var = _slang_gen_operation(A, &oper->children[0]);
-	 slang_ir_node *one = new_float_literal(1.0, 1.0, 1.0, 1.0);
-	 slang_ir_node *sum = new_node(IR_ADD, var, one);
-	 slang_ir_node *assign = new_node(IR_MOVE, var, sum);
-	 return assign;
+	 slang_ir_node *n;
+         assert(oper->num_children == 1);
+	 n = _slang_gen_function_call_name(A, "__postIncr", oper, NULL);
+	 return n;
       }
    case slang_oper_postdecrement:   /* var-- */
-      /* XXX not 100% about this */
       {
-	 slang_ir_node *var = _slang_gen_operation(A, &oper->children[0]);
-	 slang_ir_node *one = new_float_literal(1.0, 1.0, 1.0, 1.0);
-	 slang_ir_node *sum = new_node(IR_ADD, var, one);
-	 slang_ir_node *assign = new_node(IR_MOVE, var, sum);
-	 return assign;
+	 slang_ir_node *n;
+         assert(oper->num_children == 1);
+	 n = _slang_gen_function_call_name(A, "__postDecr", oper, NULL);
+	 return n;
       }
-
    case slang_oper_preincrement:   /* ++var */
       {
 	 slang_ir_node *n;