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radeonsi: move si_emit_ballot() to ac

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Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Connor Abbott
2017-06-05 15:20:04 -07:00
committed by Dave Airlie
parent ac27fa7294
commit bd73b89792
3 changed files with 35 additions and 32 deletions
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26
src/amd/common/ac_llvm_build.c
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@@ -243,6 +243,32 @@ ac_build_optimization_barrier(struct ac_llvm_context *ctx,
}
}
LLVMValueRef
ac_build_ballot(struct ac_llvm_context *ctx,
LLVMValueRef value)
{
LLVMValueRef args[3] = {
value,
ctx->i32_0,
LLVMConstInt(ctx->i32, LLVMIntNE, 0)
};
/* We currently have no other way to prevent LLVM from lifting the icmp
* calls to a dominating basic block.
*/
ac_build_optimization_barrier(ctx, &args[0]);
if (LLVMTypeOf(args[0]) != ctx->i32)
args[0] = LLVMBuildBitCast(ctx->builder, args[0], ctx->i32, "");
return ac_build_intrinsic(ctx,
"llvm.amdgcn.icmp.i32",
ctx->i64, args, 3,
AC_FUNC_ATTR_NOUNWIND |
AC_FUNC_ATTR_READNONE |
AC_FUNC_ATTR_CONVERGENT);
}
LLVMValueRef
ac_build_gather_values_extended(struct ac_llvm_context *ctx,
LLVMValueRef *values,