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ac: fix nir_op_f2f64 

Without this we get the error "FPExt only operates on FP" when
converting the following:

   vec1 32 ssa_5 = b2f ssa_4
   vec1 64 ssa_6 = f2f64 ssa_5

Which results in:

   %44 = and i32 %43, 1065353216
   %45 = fpext i32 %44 to double

With this patch we now get:

   %44 = and i32 %43, 1065353216
   %45 = bitcast i32 %44 to float
   %46 = fpext float %45 to double

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Timothy Arceri 2017-12-12 16:10:24 +11:00
parent cab5513b47
commit a5f9ac2928
1 changed files with 1 additions and 0 deletions
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1
src/amd/common/ac_nir_to_llvm.c
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@ -1802,6 +1802,7 @@ static void visit_alu(struct ac_nir_context *ctx, const nir_alu_instr *instr)
result = LLVMBuildUIToFP(ctx->ac.builder, src[0], ac_to_float_type(&ctx->ac, def_type), "");
break;
case nir_op_f2f64:
src[0] = ac_to_float(&ctx->ac, src[0]);
result = LLVMBuildFPExt(ctx->ac.builder, src[0], ac_to_float_type(&ctx->ac, def_type), "");
break;
case nir_op_f2f32: