diff options
Diffstat (limited to 'src/gallium/drivers')
| -rw-r--r-- | src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c b/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c index 88f6e168558..3d656d4a34d 100644 --- a/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c +++ b/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c @@ -1258,7 +1258,14 @@ emit_intrinsic(struct ir3_compile *ctx, nir_intrinsic_instr *intr) ctx->frag_face = create_input(b, 0); ctx->frag_face->regs[0]->flags |= IR3_REG_HALF; } - dst[0] = ir3_ADD_S(b, ctx->frag_face, 0, create_immed(b, 1), 0); + /* for fragface, we always get -1 or 0, but that is inverse + * of what nir expects (where ~0 is true). Unfortunately + * trying to widen from half to full in add.s seems to do a + * non-sign-extending widen (resulting in something that + * gets interpreted as float Inf??) + */ + dst[0] = ir3_COV(b, ctx->frag_face, TYPE_S16, TYPE_S32); + dst[0] = ir3_ADD_S(b, dst[0], 0, create_immed(b, 1), 0); break; case nir_intrinsic_discard_if: case nir_intrinsic_discard: { |