From 7697b4b98b155c818811709becdb408772371538 Mon Sep 17 00:00:00 2001 From: Jason Ekstrand Date: Thu, 15 Sep 2016 21:02:37 -0700 Subject: [PATCH] nir: Add a nop intrinsic This intrinsic has no destination, no sources, no variables, and can be eliminated. In other words, it does nothing and will always get deleted by dead code elimination. However, it does provide a quick-and-easy way to temporarily tag a particular location in a NIR shader. Signed-off-by: Jason Ekstrand Reviewed-by: Kenneth Graunke Cc: "12.0" --- src/compiler/nir/nir_intrinsics.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/compiler/nir/nir_intrinsics.h b/src/compiler/nir/nir_intrinsics.h index b27a148c951..f24d894f091 100644 --- a/src/compiler/nir/nir_intrinsics.h +++ b/src/compiler/nir/nir_intrinsics.h @@ -41,6 +41,9 @@ #define ARR(...) { __VA_ARGS__ } +INTRINSIC(nop, 0, ARR(0), false, 0, 0, 0, xx, xx, xx, + NIR_INTRINSIC_CAN_ELIMINATE) + INTRINSIC(load_var, 0, ARR(0), true, 0, 1, 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE) INTRINSIC(store_var, 1, ARR(0), false, 0, 1, 1, WRMASK, xx, xx, 0) INTRINSIC(copy_var, 0, ARR(0), false, 0, 2, 0, xx, xx, xx, 0) -- 2.30.2