afuc: Fix writing $00

This is valid and should do nothing. Don't make the PC overlap $00 in
the reg file, so that we can print out "writes" to $00 but they're still
discarded.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23949>

diff --git a/src/freedreno/afuc/emu.h b/src/freedreno/afuc/emu.h
index 1ff84c7..111b44b 100644 (file)
--- a/src/freedreno/afuc/emu.h
+++ b/src/freedreno/afuc/emu.h
@@ -35,10 +35,8 @@
 
 struct emu_gpr_regs {
    BITSET_DECLARE(written, EMU_NUM_GPR_REGS);
-   union {
-      uint32_t pc;
-      uint32_t val[EMU_NUM_GPR_REGS];
-   };
+   uint32_t pc;
+   uint32_t val[EMU_NUM_GPR_REGS];
 };
 
 #define EMU_NUM_CONTROL_REGS 0x1000