Mesa (master): pan/mdg: Implement *_rtz conversions with roundmode
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Wed Jun 3 16:06:16 UTC 2020
Module: Mesa
Branch: master
Commit: 93513cd9ff127b9842e34dc331c80f55f151376a
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=93513cd9ff127b9842e34dc331c80f55f151376a
Author: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Date: Mon May 25 14:19:11 2020 -0400
pan/mdg: Implement *_rtz conversions with roundmode
Use rte as the canonical type.
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5285>
---
src/panfrost/midgard/midgard_compile.c | 34 ++++++++++++++++++++++------------
1 file changed, 22 insertions(+), 12 deletions(-)
diff --git a/src/panfrost/midgard/midgard_compile.c b/src/panfrost/midgard/midgard_compile.c
index cee1933d693..8d8d8c062af 100644
--- a/src/panfrost/midgard/midgard_compile.c
+++ b/src/panfrost/midgard/midgard_compile.c
@@ -540,6 +540,13 @@ nir_is_non_scalar_swizzle(nir_alu_src *src, unsigned nr_components)
assert(src_bitsize == dst_bitsize); \
break;
+#define ALU_CASE_RTZ(nir, _op) \
+ case nir_op_##nir: \
+ op = midgard_alu_op_##_op; \
+ roundmode = MIDGARD_RTZ; \
+ assert(src_bitsize == dst_bitsize); \
+ break;
+
#define ALU_CHECK_CMP(sext) \
assert(src_bitsize == 16 || src_bitsize == 32); \
assert(dst_bitsize == 16 || dst_bitsize == 32); \
@@ -758,6 +765,8 @@ emit_alu(compiler_context *ctx, nir_alu_instr *instr)
unsigned src_bitsize = nir_src_bit_size(instr->src[0].src);
unsigned dst_bitsize = nir_dest_bit_size(*dest);
+ enum midgard_roundmode roundmode = MIDGARD_RTE;
+
switch (instr->op) {
ALU_CASE(fadd, fadd);
ALU_CASE(fmul, fmul);
@@ -817,20 +826,20 @@ emit_alu(compiler_context *ctx, nir_alu_instr *instr)
ALU_CASE(fexp2, fexp2);
ALU_CASE(flog2, flog2);
- ALU_CASE(f2i64, f2i_rtz);
- ALU_CASE(f2u64, f2u_rtz);
- ALU_CASE(i2f64, i2f_rtz);
- ALU_CASE(u2f64, u2f_rtz);
+ ALU_CASE_RTZ(f2i64, f2i_rte);
+ ALU_CASE_RTZ(f2u64, f2u_rte);
+ ALU_CASE_RTZ(i2f64, i2f_rte);
+ ALU_CASE_RTZ(u2f64, u2f_rte);
- ALU_CASE(f2i32, f2i_rtz);
- ALU_CASE(f2u32, f2u_rtz);
- ALU_CASE(i2f32, i2f_rtz);
- ALU_CASE(u2f32, u2f_rtz);
+ ALU_CASE_RTZ(f2i32, f2i_rte);
+ ALU_CASE_RTZ(f2u32, f2u_rte);
+ ALU_CASE_RTZ(i2f32, i2f_rte);
+ ALU_CASE_RTZ(u2f32, u2f_rte);
- ALU_CASE(f2i16, f2i_rtz);
- ALU_CASE(f2u16, f2u_rtz);
- ALU_CASE(i2f16, i2f_rtz);
- ALU_CASE(u2f16, u2f_rtz);
+ ALU_CASE_RTZ(f2i16, f2i_rte);
+ ALU_CASE_RTZ(f2u16, f2u_rte);
+ ALU_CASE_RTZ(i2f16, i2f_rte);
+ ALU_CASE_RTZ(u2f16, u2f_rte);
ALU_CASE(fsin, fsin);
ALU_CASE(fcos, fcos);
@@ -997,6 +1006,7 @@ emit_alu(compiler_context *ctx, nir_alu_instr *instr)
.dest = nir_dest_index(dest),
.dest_type = nir_op_infos[instr->op].output_type
| nir_dest_bit_size(*dest),
+ .roundmode = roundmode,
};
for (unsigned i = nr_inputs; i < ARRAY_SIZE(ins.src); ++i)
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