agx: Add invert_cond (ccn) to IR

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11023>

src/asahi/compiler/agx_compiler.h

@@ -265,6 +265,9 @@ typedef struct {
       enum agx_lod_mode lod_mode;
    };
 
+   /* Invert icond/fcond */
+   bool invert_cond : 1;
+
    /* TODO: Handle tex ops more efficient */
    enum agx_dim dim : 3;
 

src/asahi/compiler/agx_opcodes.py

@@ -87,6 +87,7 @@ SCOREBOARD = immediate("scoreboard")
 ICOND = immediate("icond")
 FCOND = immediate("fcond")
 NEST = immediate("nest")
+INVERT_COND = immediate("invert_cond")
 
 FUNOP = lambda x: (x << 28)
 FUNOP_MASK = FUNOP((1 << 14) - 1)

src/asahi/compiler/agx_print.c

@@ -176,6 +176,15 @@ agx_print_instr(agx_instr *I, FILE *fp)
       fprintf(fp, "n=%u", I->nest);
    }
 
+   if ((info.immediates & AGX_IMMEDIATE_INVERT_COND) && I->invert_cond) {
+      if (print_comma)
+         fprintf(fp, ", ");
+      else
+         print_comma = true;
+
+      fprintf(fp, "inv");
+   }
+
    fprintf(fp, "\n");
 }