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ac/nir: implement nir_op_{b2i,i2b} 

Booleans in NIR are ~0 for true, b2i returns 0/1.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Nicolai Hähnle 2017-06-24 20:39:39 +02:00 committed by Dave Airlie
parent 77d7764d5e
commit dacf73e527
1 changed files with 20 additions and 0 deletions
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20
src/amd/common/ac_nir_to_llvm.c
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@ -1287,6 +1287,20 @@ static LLVMValueRef emit_b2f(struct nir_to_llvm_context *ctx,
return LLVMBuildAnd(ctx->builder, src0, LLVMBuildBitCast(ctx->builder, LLVMConstReal(ctx->f32, 1.0), ctx->i32, ""), "");
}
static LLVMValueRef emit_b2i(struct ac_llvm_context *ctx,
LLVMValueRef src0)
{
return LLVMBuildAnd(ctx->builder, src0, ctx->i32_1, "");
}
static LLVMValueRef emit_i2b(struct ac_llvm_context *ctx,
LLVMValueRef src0)
{
return LLVMBuildSExt(ctx->builder,
LLVMBuildICmp(ctx->builder, LLVMIntNE, src0, ctx->i32_0, ""),
ctx->i32, "");
}
static LLVMValueRef emit_f2f16(struct nir_to_llvm_context *ctx,
LLVMValueRef src0)
{
@ -1808,6 +1822,12 @@ static void visit_alu(struct nir_to_llvm_context *ctx, const nir_alu_instr *inst
case nir_op_b2f:
result = emit_b2f(ctx, src[0]);
break;
case nir_op_b2i:
result = emit_b2i(&ctx->ac, src[0]);
break;
case nir_op_i2b:
result = emit_i2b(&ctx->ac, src[0]);
break;
case nir_op_fquantize2f16:
result = emit_f2f16(ctx, src[0]);
break;