diff options
| author | Timothy Arceri <[email protected]> | 2018-02-06 14:34:55 +1100 |
|---|---|---|
| committer | Timothy Arceri <[email protected]> | 2018-02-09 09:42:59 +1100 |
| commit | 19f9839f0b94146227076f45dbbc62077d64e7a9 (patch) | |
| tree | e7cb8ca60b938e14a443d538d5e2c71ea097b6c2 /src | |
| parent | bb750d265c5c27136cf10460fc423503a4d7d5aa (diff) | |
ac: add 64bit bitCount support
v2: use LLVMBuildTrunc()
Reviewed-by: Marek Olšák <[email protected]>
Diffstat (limited to 'src')
| -rw-r--r-- | src/amd/common/ac_nir_to_llvm.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c index 550c12d249c..b842641383c 100644 --- a/src/amd/common/ac_nir_to_llvm.c +++ b/src/amd/common/ac_nir_to_llvm.c @@ -1917,7 +1917,12 @@ static void visit_alu(struct ac_nir_context *ctx, const nir_alu_instr *instr) result = ac_build_intrinsic(&ctx->ac, "llvm.bitreverse.i32", ctx->ac.i32, src, 1, AC_FUNC_ATTR_READNONE); break; case nir_op_bit_count: - result = ac_build_intrinsic(&ctx->ac, "llvm.ctpop.i32", ctx->ac.i32, src, 1, AC_FUNC_ATTR_READNONE); + if (get_elem_bits(&ctx->ac, LLVMTypeOf(src[0])) == 32) + result = ac_build_intrinsic(&ctx->ac, "llvm.ctpop.i32", ctx->ac.i32, src, 1, AC_FUNC_ATTR_READNONE); + else { + result = ac_build_intrinsic(&ctx->ac, "llvm.ctpop.i64", ctx->ac.i64, src, 1, AC_FUNC_ATTR_READNONE); + result = LLVMBuildTrunc(ctx->ac.builder, result, ctx->ac.i32, ""); + } break; case nir_op_vec2: case nir_op_vec3: |