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Diffstat (limited to 'src/mesa/shader/slang/library/slang_common_builtin.gc')
-rw-r--r--src/mesa/shader/slang/library/slang_common_builtin.gc76
1 files changed, 42 insertions, 34 deletions
diff --git a/src/mesa/shader/slang/library/slang_common_builtin.gc b/src/mesa/shader/slang/library/slang_common_builtin.gc
index 9764fc25b0..56de47ee8d 100644
--- a/src/mesa/shader/slang/library/slang_common_builtin.gc
+++ b/src/mesa/shader/slang/library/slang_common_builtin.gc
@@ -602,42 +602,50 @@ vec4 exp2(const vec4 a)
float sqrt(const float x)
{
+ const float nx = -x;
float r;
__asm float_rsq r, x;
- __asm float_rcp __retVal, r;
-}
-
-vec2 sqrt(const vec2 v)
-{
- float r;
- __asm float_rsq r, v.x;
- __asm float_rcp __retVal.x, r;
- __asm float_rsq r, v.y;
- __asm float_rcp __retVal.y, r;
-}
-
-vec3 sqrt(const vec3 v)
-{
- float r;
- __asm float_rsq r, v.x;
- __asm float_rcp __retVal.x, r;
- __asm float_rsq r, v.y;
- __asm float_rcp __retVal.y, r;
- __asm float_rsq r, v.z;
- __asm float_rcp __retVal.z, r;
-}
-
-vec4 sqrt(const vec4 v)
-{
- float r;
- __asm float_rsq r, v.x;
- __asm float_rcp __retVal.x, r;
- __asm float_rsq r, v.y;
- __asm float_rcp __retVal.y, r;
- __asm float_rsq r, v.z;
- __asm float_rcp __retVal.z, r;
- __asm float_rsq r, v.w;
- __asm float_rcp __retVal.w, r;
+ __asm float_rcp r, r;
+ __asm vec4_cmp __retVal, nx, r, 0.0;
+}
+
+vec2 sqrt(const vec2 x)
+{
+ const vec2 nx = -x, zero = vec2(0.0);
+ vec2 r;
+ __asm float_rsq r.x, x.x;
+ __asm float_rsq r.y, x.y;
+ __asm float_rcp r.x, r.x;
+ __asm float_rcp r.y, r.y;
+ __asm vec4_cmp __retVal, nx, r, zero;
+}
+
+vec3 sqrt(const vec3 x)
+{
+ const vec3 nx = -x, zero = vec3(0.0);
+ vec3 r;
+ __asm float_rsq r.x, x.x;
+ __asm float_rsq r.y, x.y;
+ __asm float_rsq r.z, x.z;
+ __asm float_rcp r.x, r.x;
+ __asm float_rcp r.y, r.y;
+ __asm float_rcp r.z, r.z;
+ __asm vec4_cmp __retVal, nx, r, zero;
+}
+
+vec4 sqrt(const vec4 x)
+{
+ const vec4 nx = -x, zero = vec4(0.0);
+ vec4 r;
+ __asm float_rsq r.x, x.x;
+ __asm float_rsq r.y, x.y;
+ __asm float_rsq r.z, x.z;
+ __asm float_rsq r.w, x.w;
+ __asm float_rcp r.x, r.x;
+ __asm float_rcp r.y, r.y;
+ __asm float_rcp r.z, r.z;
+ __asm float_rcp r.w, r.w;
+ __asm vec4_cmp __retVal, nx, r, zero;
}