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zink/ntv: seperate float control2 exact bits

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Reviewed-by: Mel Henning <mhenning@darkrefraction.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40872>
This commit is contained in:
Georg Lehmann 2026-04-09 17:41:18 +02:00 • committed by Marge Bot
parent 5231c924ea
commit 5269c6d422
1 changed files with 11 additions and 7 deletions
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18
src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
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@ -2310,13 +2310,17 @@ emit_alu(struct ntv_context *ctx, nir_alu_instr *alu)
if (!nir_alu_instr_is_nan_preserve(alu))
fp_mode |= SpvFPFastMathModeNotNaNMask;
if (!nir_alu_instr_is_exact(alu)) {
fp_mode |=
SpvFPFastMathModeAllowRecipMask |
SpvFPFastMathModeAllowContractMask |
SpvFPFastMathModeAllowReassocMask |
SpvFPFastMathModeAllowTransformMask;
}
if (!nir_alu_instr_no_contract(alu))
fp_mode |= SpvFPFastMathModeAllowContractMask;
if (!nir_alu_instr_no_reassoc(alu))
fp_mode |= SpvFPFastMathModeAllowReassocMask;
if (!nir_alu_instr_no_transform(alu))
fp_mode |= SpvFPFastMathModeAllowTransformMask;
/* Vulkan always allows rcp anyway. */
fp_mode |= SpvFPFastMathModeAllowRecipMask;
if (fp_mode != default_fp_mode)
spirv_builder_emit_fp_fast_math_mode(&ctx->builder, result, fp_mode);