https://github.com/arsenm created https://github.com/llvm/llvm-project/pull/185626
For amdgpu use the exp intrinisc. Really, this should be the default generic implementation. But we're stuck in a mess where essentially nothing works. All of the exp intrinsics work for AMDGPU, but aren't really implemented for spirv or nvptx. Ideally the intrinsic and/or libm call would be the default implementation. >From 29179d6cc044074a991767a0ea75ac61d3cc6e51 Mon Sep 17 00:00:00 2001 From: Matt Arsenault <[email protected]> Date: Tue, 10 Mar 2026 12:44:49 +0100 Subject: [PATCH] libclc: Use elementwise exp for exp functions For amdgpu use the exp intrinisc. Really, this should be the default generic implementation. But we're stuck in a mess where essentially nothing works. All of the exp intrinsics work for AMDGPU, but aren't really implemented for spirv or nvptx. Ideally the intrinsic and/or libm call would be the default implementation. --- libclc/clc/lib/amdgpu/CMakeLists.txt | 3 +++ libclc/clc/lib/amdgpu/math/clc_exp.cl | 15 +++++++++++++++ libclc/clc/lib/amdgpu/math/clc_exp10.cl | 15 +++++++++++++++ libclc/clc/lib/amdgpu/math/clc_exp2.cl | 15 +++++++++++++++ 4 files changed, 48 insertions(+) create mode 100644 libclc/clc/lib/amdgpu/math/clc_exp.cl create mode 100644 libclc/clc/lib/amdgpu/math/clc_exp10.cl create mode 100644 libclc/clc/lib/amdgpu/math/clc_exp2.cl diff --git a/libclc/clc/lib/amdgpu/CMakeLists.txt b/libclc/clc/lib/amdgpu/CMakeLists.txt index cfed021d8fc26..f593bc6fdd8cf 100644 --- a/libclc/clc/lib/amdgpu/CMakeLists.txt +++ b/libclc/clc/lib/amdgpu/CMakeLists.txt @@ -1,6 +1,9 @@ libclc_configure_source_list(CLC_AMDGPU_SOURCES ${CMAKE_CURRENT_SOURCE_DIR} address_space/qualifier.cl + math/clc_exp.cl + math/clc_exp2.cl + math/clc_exp10.cl math/clc_half_exp.cl math/clc_half_exp2.cl math/clc_half_exp10.cl diff --git a/libclc/clc/lib/amdgpu/math/clc_exp.cl b/libclc/clc/lib/amdgpu/math/clc_exp.cl new file mode 100644 index 0000000000000..33c47bf5037e0 --- /dev/null +++ b/libclc/clc/lib/amdgpu/math/clc_exp.cl @@ -0,0 +1,15 @@ +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include <clc/internal/clc.h> + +#define __CLC_FUNCTION __clc_exp +#define __CLC_IMPL_FUNCTION(x) __builtin_elementwise_exp +#define __CLC_BODY <clc/shared/unary_def.inc> + +#include <clc/math/gentype.inc> diff --git a/libclc/clc/lib/amdgpu/math/clc_exp10.cl b/libclc/clc/lib/amdgpu/math/clc_exp10.cl new file mode 100644 index 0000000000000..fcc739fbb7fbd --- /dev/null +++ b/libclc/clc/lib/amdgpu/math/clc_exp10.cl @@ -0,0 +1,15 @@ +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include <clc/internal/clc.h> + +#define __CLC_FUNCTION __clc_exp10 +#define __CLC_IMPL_FUNCTION(x) __builtin_elementwise_exp10 +#define __CLC_BODY <clc/shared/unary_def.inc> + +#include <clc/math/gentype.inc> diff --git a/libclc/clc/lib/amdgpu/math/clc_exp2.cl b/libclc/clc/lib/amdgpu/math/clc_exp2.cl new file mode 100644 index 0000000000000..ec65b93b6b52e --- /dev/null +++ b/libclc/clc/lib/amdgpu/math/clc_exp2.cl @@ -0,0 +1,15 @@ +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include <clc/internal/clc.h> + +#define __CLC_FUNCTION __clc_exp2 +#define __CLC_IMPL_FUNCTION(x) __builtin_elementwise_exp2 +#define __CLC_BODY <clc/shared/unary_def.inc> + +#include <clc/math/gentype.inc> _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
