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nir/opt_fp_math_ctrl: use ddx/ddy fp_math_ctrl

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Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40630>
This commit is contained in:
Georg Lehmann 2026-03-25 14:38:42 +01:00 • committed by Marge Bot
parent 85ff60e68a
commit 9cba104e11
1 changed files with 13 additions and 3 deletions
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16
src/compiler/nir/nir_opt_fp_math_ctrl.c
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@ -225,10 +225,20 @@ opt_intrin_fp_math_ctrl(nir_intrinsic_instr *intrin)
case nir_intrinsic_ddx_fine:
case nir_intrinsic_ddy:
case nir_intrinsic_ddy_coarse:
case nir_intrinsic_ddy_fine:
if (intrin->instr.pass_flags)
case nir_intrinsic_ddy_fine: {
unsigned fp_math_ctrl = nir_intrinsic_fp_math_ctrl(intrin);
if ((fp_math_ctrl & nir_fp_preserve_signed_zero) == 0)
return false;
if (intrin->instr.pass_flags) {
src_mark_preserve_sz(&intrin->src[0], NULL);
return false;
return false;
} else {
fp_math_ctrl &= ~nir_fp_preserve_signed_zero;
nir_intrinsic_set_fp_math_ctrl(intrin, fp_math_ctrl);
return true;
}
}
default:
break;
}