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ac/nir: implement half-float nir_op_ldexp

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Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
This commit is contained in:
Rhys Perry 2018-12-06 14:36:56 +00:00
parent 6971e8d342
commit 238730daef
1 changed files with 3 additions and 1 deletions
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4
src/amd/common/ac_nir_to_llvm.c
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@ -829,8 +829,10 @@ static void visit_alu(struct ac_nir_context *ctx, const nir_alu_instr *instr)
break;
case nir_op_ldexp:
src[0] = ac_to_float(&ctx->ac, src[0]);
if (ac_get_elem_bits(&ctx->ac, LLVMTypeOf(src[0])) == 32)
if (ac_get_elem_bits(&ctx->ac, def_type) == 32)
result = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.ldexp.f32", ctx->ac.f32, src, 2, AC_FUNC_ATTR_READNONE);
else if (ac_get_elem_bits(&ctx->ac, def_type) == 16)
result = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.ldexp.f16", ctx->ac.f16, src, 2, AC_FUNC_ATTR_READNONE);
else
result = ac_build_intrinsic(&ctx->ac, "llvm.amdgcn.ldexp.f64", ctx->ac.f64, src, 2, AC_FUNC_ATTR_READNONE);
break;