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ac: add 64bit bitCount support
author
Timothy Arceri
<tarceri@itsqueeze.com>
Tue, 6 Feb 2018 03:34:55 +0000
(14:34 +1100)
committer
Timothy Arceri
<tarceri@itsqueeze.com>
Thu, 8 Feb 2018 22:42:59 +0000
(09:42 +1100)
v2: use LLVMBuildTrunc()
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
src/amd/common/ac_nir_to_llvm.c
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diff --git
a/src/amd/common/ac_nir_to_llvm.c
b/src/amd/common/ac_nir_to_llvm.c
index 550c12d249c7a885b3fe1bdc9b143d58e8acf2a1..b842641383c3a2a8fb7db77e985d1194b1c66d22 100644
(file)
--- 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.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:
break;
case nir_op_vec2:
case nir_op_vec3: