From 2cd9dd1fd77077ba8f85fc5c68e53af0c786521c Mon Sep 17 00:00:00 2001
From: squidbus <gh.thud602@passmail.net>
Date: Sun, 26 Apr 2026 18:37:13 -0700
Subject: [PATCH] kk: Fix emitting negative infinity

Fixes subgroup max tests, which use -INFINITY as a base when
calculating the reference maximum value.

Reviewed-by: Aitor Camacho <aitor@lunarg.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41186>
---
 src/kosmickrisp/compiler/msl_type_inference.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/kosmickrisp/compiler/msl_type_inference.c b/src/kosmickrisp/compiler/msl_type_inference.c
index 30e3b472785..449ec61a62a 100644
--- a/src/kosmickrisp/compiler/msl_type_inference.c
+++ b/src/kosmickrisp/compiler/msl_type_inference.c
@@ -746,8 +746,10 @@ emit_src_component(struct nir_to_msl_ctx *ctx, nir_src *src, unsigned comp)
    switch (type) {
    case TYPE_FLOAT: {
       double v = nir_src_comp_as_float(*src, comp);
-      if (isinf(v)) {
+      if (v == INFINITY) {
          P(ctx, "(INFINITY");
+      } else if (v == -INFINITY) {
+         P(ctx, "(-INFINITY");
       } else if (isnan(v)) {
          P(ctx, "(NAN");
       } else {