Module: Mesa
Branch: master
Commit: c135316555ccd052da544e79166f81dece55cebb
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=c135316555ccd052da544e79166f81dece55cebb
Author: Timothy Arceri <tarc...@itsqueeze.com>
Date: Tue Mar 20 13:07:22 2018 +1100
ac/nir_to_llvm: add frexp support
Fixes CTS tests:
KHR-GL40.gpu_shader_fp64.builtin.frexp_double
KHR-GL40.gpu_shader_fp64.builtin.frexp_dvec2
KHR-GL40.gpu_shader_fp64.builtin.frexp_dvec3
KHR-GL40.gpu_shader_fp64.builtin.frexp_dvec4
And piglit test:
tests/spec/arb_gpu_shader_fp64/execution/built-in-functions/fs-frexp-dvec4.shader_test
Reviewed-by: Bas Nieuwenhuizen <b...@basnieuwenhuizen.nl>
Reviewed-by: Marek Olšák <marek.ol...@amd.com>
---
src/amd/common/ac_nir_to_llvm.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index b0c0d76b47..d23f4fc1e8 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -728,6 +728,17 @@ static void visit_alu(struct ac_nir_context *ctx, const
nir_alu_instr *instr)
result = ac_build_fdiv(&ctx->ac, instr->dest.dest.ssa.bit_size
== 32 ? ctx->ac.f32_1 : ctx->ac.f64_1,
result);
break;
+ case nir_op_frexp_exp:
+ src[0] = ac_to_float(&ctx->ac, src[0]);
+ result = ac_build_intrinsic(&ctx->ac,
"llvm.amdgcn.frexp.exp.i32.f64",
+ ctx->ac.i32, src, 1,
AC_FUNC_ATTR_READNONE);
+
+ break;
+ case nir_op_frexp_sig:
+ src[0] = ac_to_float(&ctx->ac, src[0]);
+ result = ac_build_intrinsic(&ctx->ac,
"llvm.amdgcn.frexp.mant.f64",
+ ctx->ac.f64, src, 1,
AC_FUNC_ATTR_READNONE);
+ break;
case nir_op_fmax:
result = emit_intrin_2f_param(&ctx->ac, "llvm.maxnum",
ac_to_float_type(&ctx->ac,
def_type), src[0], src[1]);
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