https://github.com/BeMg created https://github.com/llvm/llvm-project/pull/101320
…790)"
This reverts commit a41a4ac78294c728fb70a51623c602ea7f3e308a.
After discussing with @preames, we have determined that RISC-V function
multi-versioning is not supported in release/19.x. This patch reverts the
compiler-rt related changes since there are no users for this feature.
>From e99bdcca4844887de0c4cb0ba11ea04e05851b17 Mon Sep 17 00:00:00 2001
From: Piyou Chen
Date: Wed, 31 Jul 2024 00:54:03 -0700
Subject: [PATCH] Revert "[compiler-rt][RISCV] Implement
__init_riscv_feature_bits (#85790)"
This reverts commit a41a4ac78294c728fb70a51623c602ea7f3e308a.
---
compiler-rt/lib/builtins/CMakeLists.txt | 1 -
compiler-rt/lib/builtins/riscv/feature_bits.c | 298 --
2 files changed, 299 deletions(-)
delete mode 100644 compiler-rt/lib/builtins/riscv/feature_bits.c
diff --git a/compiler-rt/lib/builtins/CMakeLists.txt
b/compiler-rt/lib/builtins/CMakeLists.txt
index 88a5998fd4610e..abea8c498f7bdc 100644
--- a/compiler-rt/lib/builtins/CMakeLists.txt
+++ b/compiler-rt/lib/builtins/CMakeLists.txt
@@ -739,7 +739,6 @@ endif()
set(powerpc64le_SOURCES ${powerpc64_SOURCES})
set(riscv_SOURCES
- riscv/feature_bits.c
riscv/fp_mode.c
riscv/save.S
riscv/restore.S
diff --git a/compiler-rt/lib/builtins/riscv/feature_bits.c
b/compiler-rt/lib/builtins/riscv/feature_bits.c
deleted file mode 100644
index 77422935bd2d30..00
--- a/compiler-rt/lib/builtins/riscv/feature_bits.c
+++ /dev/null
@@ -1,298 +0,0 @@
-//=== feature_bits.c - Update RISC-V Feature Bits Structure -*- C
-*-=//
-//
-// 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
-//
-//===--===//
-
-#define RISCV_FEATURE_BITS_LENGTH 1
-struct {
- unsigned length;
- unsigned long long features[RISCV_FEATURE_BITS_LENGTH];
-} __riscv_feature_bits __attribute__((visibility("hidden"), nocommon));
-
-#define RISCV_VENDOR_FEATURE_BITS_LENGTH 1
-struct {
- unsigned vendorID;
- unsigned length;
- unsigned long long features[RISCV_VENDOR_FEATURE_BITS_LENGTH];
-} __riscv_vendor_feature_bits __attribute__((visibility("hidden"), nocommon));
-
-// NOTE: Should sync-up with RISCVFeatures.td
-// TODO: Maybe generate a header from tablegen then include it.
-#define A_GROUPID 0
-#define A_BITMASK (1ULL << 0)
-#define C_GROUPID 0
-#define C_BITMASK (1ULL << 2)
-#define D_GROUPID 0
-#define D_BITMASK (1ULL << 3)
-#define F_GROUPID 0
-#define F_BITMASK (1ULL << 5)
-#define I_GROUPID 0
-#define I_BITMASK (1ULL << 8)
-#define M_GROUPID 0
-#define M_BITMASK (1ULL << 12)
-#define V_GROUPID 0
-#define V_BITMASK (1ULL << 21)
-#define ZACAS_GROUPID 0
-#define ZACAS_BITMASK (1ULL << 26)
-#define ZBA_GROUPID 0
-#define ZBA_BITMASK (1ULL << 27)
-#define ZBB_GROUPID 0
-#define ZBB_BITMASK (1ULL << 28)
-#define ZBC_GROUPID 0
-#define ZBC_BITMASK (1ULL << 29)
-#define ZBKB_GROUPID 0
-#define ZBKB_BITMASK (1ULL << 30)
-#define ZBKC_GROUPID 0
-#define ZBKC_BITMASK (1ULL << 31)
-#define ZBKX_GROUPID 0
-#define ZBKX_BITMASK (1ULL << 32)
-#define ZBS_GROUPID 0
-#define ZBS_BITMASK (1ULL << 33)
-#define ZFA_GROUPID 0
-#define ZFA_BITMASK (1ULL << 34)
-#define ZFH_GROUPID 0
-#define ZFH_BITMASK (1ULL << 35)
-#define ZFHMIN_GROUPID 0
-#define ZFHMIN_BITMASK (1ULL << 36)
-#define ZICBOZ_GROUPID 0
-#define ZICBOZ_BITMASK (1ULL << 37)
-#define ZICOND_GROUPID 0
-#define ZICOND_BITMASK (1ULL << 38)
-#define ZIHINTNTL_GROUPID 0
-#define ZIHINTNTL_BITMASK (1ULL << 39)
-#define ZIHINTPAUSE_GROUPID 0
-#define ZIHINTPAUSE_BITMASK (1ULL << 40)
-#define ZKND_GROUPID 0
-#define ZKND_BITMASK (1ULL << 41)
-#define ZKNE_GROUPID 0
-#define ZKNE_BITMASK (1ULL << 42)
-#define ZKNH_GROUPID 0
-#define ZKNH_BITMASK (1ULL << 43)
-#define ZKSED_GROUPID 0
-#define ZKSED_BITMASK (1ULL << 44)
-#define ZKSH_GROUPID 0
-#define ZKSH_BITMASK (1ULL << 45)
-#define ZKT_GROUPID 0
-#define ZKT_BITMASK (1ULL << 46)
-#define ZTSO_GROUPID 0
-#define ZTSO_BITMASK (1ULL << 47)
-#define ZVBB_GROUPID 0
-#define ZVBB_BITMASK (1ULL << 48)
-#define ZVBC_GROUPID 0
-#define ZVBC_BITMASK (1ULL << 49)
-#define ZVFH_GROUPID 0
-#define ZVFH_BITMASK (1ULL << 50)
-#define ZVFHMIN_GROUPID 0
-#define ZVFHMIN_BITMASK (1ULL << 51)
-#define ZVKB_GROUPID 0
-#define ZVKB_BITMASK (1ULL << 52)
-#define ZVKG_GROUPID 0
-#define ZVKG_BITMASK (1ULL << 53)
-#define ZVKNED_GROUPID 0
-#define ZVKNED_BITMASK (1ULL << 54)
-#define ZVKNHA_GROUPID 0
-#define ZVKNHA_BITMASK (1ULL << 55)
-#define ZVKNHB_GROUPID 0
-#define ZVKNHB_BITMASK (1ULL << 56)
-#define ZVKSED_GROUPID 0
-#define ZVKSED_BITMASK (1ULL << 57)
-#define ZVKSH_GROUPID 0
-#define ZVKSH_BITMASK (1ULL << 58)
-#define ZVKT_GROUPID 0
-#define ZVKT_BITMASK (1ULL << 59)
-
-#if defined(__linux__)
-
-static long syscall_impl_5_args(long number, long arg1, lo
