Revert "[AMDGPU] Use COV6 by default (#118515)"

shiltian · shiltian · commit 68bcba6d7a1c · 2024-12-03T20:17:06.000-05:00
This reverts commit 410cbe3 because some buildbots are not ready yet.
diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
@@ -818,8 +818,6 @@ Target Specific Changes
 AMDGPU Support
 ^^^^^^^^^^^^^^
 
-- Bump the default code object version to 6.
-
 - Initial support for gfx950
 
 - Added headers ``gpuintrin.h`` and ``amdgpuintrin.h`` that contains common
diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
@@ -5140,12 +5140,12 @@ defm amdgpu_ieee : BoolMOption<"amdgpu-ieee",
   NegFlag<SetFalse, [], [ClangOption, CC1Option]>>;
 
 def mcode_object_version_EQ : Joined<["-"], "mcode-object-version=">, Group<m_Group>,
-  HelpText<"Specify code object ABI version. Defaults to 6. (AMDGPU only)">,
+  HelpText<"Specify code object ABI version. Defaults to 5. (AMDGPU only)">,
   Visibility<[ClangOption, FlangOption, CC1Option, FC1Option]>,
   Values<"none,4,5,6">,
   NormalizedValuesScope<"llvm::CodeObjectVersionKind">,
   NormalizedValues<["COV_None", "COV_4", "COV_5", "COV_6"]>,
-  MarshallingInfoEnum<TargetOpts<"CodeObjectVersion">, "COV_6">;
+  MarshallingInfoEnum<TargetOpts<"CodeObjectVersion">, "COV_5">;
 
 defm cumode : SimpleMFlag<"cumode",
   "Specify CU wavefront", "Specify WGP wavefront",
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -2705,7 +2705,7 @@ void tools::checkAMDGPUCodeObjectVersion(const Driver &D,
 
 unsigned tools::getAMDGPUCodeObjectVersion(const Driver &D,
                                            const llvm::opt::ArgList &Args) {
-  unsigned CodeObjVer = 6; // default
+  unsigned CodeObjVer = 5; // default
   if (auto *CodeObjArg = getAMDGPUCodeObjectArgument(D, Args))
     StringRef(CodeObjArg->getValue()).getAsInteger(0, CodeObjVer);
   return CodeObjVer;
diff --git a/clang/test/CodeGen/amdgpu-address-spaces.cpp b/clang/test/CodeGen/amdgpu-address-spaces.cpp
@@ -29,7 +29,7 @@ int [[clang::address_space(999)]] bbb = 1234;
 // CHECK: @u = addrspace(5) global i32 undef, align 4
 // CHECK: @aaa = addrspace(6) global i32 1000, align 4
 // CHECK: @bbb = addrspace(999) global i32 1234, align 4
-// CHECK: @__oclc_ABI_version = weak_odr hidden local_unnamed_addr addrspace(4) constant i32 600
+// CHECK: @__oclc_ABI_version = weak_odr hidden local_unnamed_addr addrspace(4) constant i32 500
 //.
 // CHECK-LABEL: define dso_local amdgpu_kernel void @foo(
 // CHECK-SAME: ) #[[ATTR0:[0-9]+]] {
diff --git a/clang/test/CodeGenCUDA/amdgpu-code-object-version.cu b/clang/test/CodeGenCUDA/amdgpu-code-object-version.cu
@@ -1,7 +1,7 @@
 // Create module flag for code object version.
 
 // RUN: %clang_cc1 -fcuda-is-device -triple amdgcn-amd-amdhsa -emit-llvm \
-// RUN:   -o - %s | FileCheck %s -check-prefix=V6
+// RUN:   -o - %s | FileCheck %s -check-prefix=V5
 
 // RUN: %clang_cc1 -fcuda-is-device -triple amdgcn-amd-amdhsa -emit-llvm \
 // RUN:   -mcode-object-version=4 -o - %s | FileCheck -check-prefix=V4 %s
diff --git a/clang/test/CodeGenCXX/dynamic-cast-address-space.cpp b/clang/test/CodeGenCXX/dynamic-cast-address-space.cpp
@@ -13,7 +13,7 @@ B fail;
 // CHECK: @_ZTI1B = linkonce_odr addrspace(1) constant { ptr addrspace(1), ptr addrspace(1), ptr addrspace(1) } { ptr addrspace(1) getelementptr inbounds (ptr addrspace(1), ptr addrspace(1) @_ZTVN10__cxxabiv120__si_class_type_infoE, i64 2), ptr addrspace(1) @_ZTS1B, ptr addrspace(1) @_ZTI1A }, comdat, align 8
 // CHECK: @_ZTVN10__cxxabiv120__si_class_type_infoE = external addrspace(1) global [0 x ptr addrspace(1)]
 // CHECK: @_ZTS1B = linkonce_odr addrspace(1) constant [3 x i8] c"1B\00", comdat, align 1
-// CHECK: @__oclc_ABI_version = weak_odr hidden local_unnamed_addr addrspace(4) constant i32 600
+// CHECK: @__oclc_ABI_version = weak_odr hidden local_unnamed_addr addrspace(4) constant i32 500
 //.
 // WITH-NONZERO-DEFAULT-AS: @_ZTV1B = linkonce_odr unnamed_addr addrspace(1) constant { [3 x ptr addrspace(1)] } { [3 x ptr addrspace(1)] [ptr addrspace(1) null, ptr addrspace(1) @_ZTI1B, ptr addrspace(1) addrspacecast (ptr addrspace(4) @_ZN1A1fEv to ptr addrspace(1))] }, comdat, align 8
 // WITH-NONZERO-DEFAULT-AS: @fail = addrspace(1) global { ptr addrspace(1) } { ptr addrspace(1) getelementptr inbounds inrange(-16, 8) ({ [3 x ptr addrspace(1)] }, ptr addrspace(1) @_ZTV1B, i32 0, i32 0, i32 2) }, align 8
@@ -118,11 +118,11 @@ const B& f(A *a) {
 // WITH-NONZERO-DEFAULT-AS: attributes #[[ATTR3]] = { nounwind }
 // WITH-NONZERO-DEFAULT-AS: attributes #[[ATTR4]] = { noreturn }
 //.
-// CHECK: [[META0:![0-9]+]] = !{i32 1, !"amdhsa_code_object_version", i32 600}
+// CHECK: [[META0:![0-9]+]] = !{i32 1, !"amdhsa_code_object_version", i32 500}
 // CHECK: [[META1:![0-9]+]] = !{i32 1, !"wchar_size", i32 4}
 // CHECK: [[META2:![0-9]+]] = !{!"{{.*}}clang version {{.*}}"}
 //.
-// WITH-NONZERO-DEFAULT-AS: [[META0:![0-9]+]] = !{i32 1, !"amdhsa_code_object_version", i32 600}
+// WITH-NONZERO-DEFAULT-AS: [[META0:![0-9]+]] = !{i32 1, !"amdhsa_code_object_version", i32 500}
 // WITH-NONZERO-DEFAULT-AS: [[META1:![0-9]+]] = !{i32 1, !"wchar_size", i32 4}
 // WITH-NONZERO-DEFAULT-AS: [[META2:![0-9]+]] = !{!"{{.*}}clang version {{.*}}"}
 //.
diff --git a/clang/test/CodeGenHIP/default-attributes.hip b/clang/test/CodeGenHIP/default-attributes.hip
@@ -8,7 +8,7 @@
 //.
 // OPTNONE: @__hip_cuid_ = addrspace(1) global i8 0
 // OPTNONE: @llvm.compiler.used = appending addrspace(1) global [1 x ptr] [ptr addrspacecast (ptr addrspace(1) @__hip_cuid_ to ptr)], section "llvm.metadata"
-// OPTNONE: @__oclc_ABI_version = weak_odr hidden local_unnamed_addr addrspace(4) constant i32 600
+// OPTNONE: @__oclc_ABI_version = weak_odr hidden local_unnamed_addr addrspace(4) constant i32 500
 //.
 __device__ void extern_func();
 
@@ -39,7 +39,7 @@ __global__ void kernel() {
 // OPTNONE: attributes #[[ATTR2]] = { convergent mustprogress noinline norecurse nounwind optnone "amdgpu-flat-work-group-size"="1,1024" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "uniform-work-group-size"="true" }
 // OPTNONE: attributes #[[ATTR3]] = { convergent nounwind }
 //.
-// OPTNONE: [[META0:![0-9]+]] = !{i32 1, !"amdhsa_code_object_version", i32 600}
+// OPTNONE: [[META0:![0-9]+]] = !{i32 1, !"amdhsa_code_object_version", i32 500}
 // OPTNONE: [[META1:![0-9]+]] = !{i32 1, !"amdgpu_printf_kind", !"hostcall"}
 // OPTNONE: [[META2:![0-9]+]] = !{i32 1, !"wchar_size", i32 4}
 //.
diff --git a/clang/test/CodeGenOpenCL/amdgpu-enqueue-kernel.cl b/clang/test/CodeGenOpenCL/amdgpu-enqueue-kernel.cl
@@ -62,7 +62,7 @@ kernel void test_target_features_kernel(global int *i) {
 
 //.
 // CHECK: @__block_literal_global = internal addrspace(1) constant { i32, i32, ptr } { i32 16, i32 8, ptr @__test_target_features_kernel_block_invoke }, align 8 #0
-// CHECK: @__oclc_ABI_version = weak_odr hidden local_unnamed_addr addrspace(4) constant i32 600
+// CHECK: @__oclc_ABI_version = weak_odr hidden local_unnamed_addr addrspace(4) constant i32 500
 //.
 // NOCPU: Function Attrs: convergent noinline norecurse nounwind optnone
 // NOCPU-LABEL: define {{[^@]+}}@callee
@@ -759,7 +759,7 @@ kernel void test_target_features_kernel(global int *i) {
 // GFX900: attributes #[[ATTR8]] = { nounwind }
 // GFX900: attributes #[[ATTR9]] = { convergent nounwind }
 //.
-// NOCPU: [[META0:![0-9]+]] = !{i32 1, !"amdhsa_code_object_version", i32 600}
+// NOCPU: [[META0:![0-9]+]] = !{i32 1, !"amdhsa_code_object_version", i32 500}
 // NOCPU: [[META1:![0-9]+]] = !{i32 1, !"wchar_size", i32 4}
 // NOCPU: [[META2:![0-9]+]] = !{i32 2, i32 0}
 // NOCPU: [[META3]] = !{i32 1, i32 0, i32 1, i32 0}
@@ -777,7 +777,7 @@ kernel void test_target_features_kernel(global int *i) {
 // NOCPU: [[META15]] = !{i32 1}
 // NOCPU: [[META16]] = !{!"int*"}
 //.
-// GFX900: [[META0:![0-9]+]] = !{i32 1, !"amdhsa_code_object_version", i32 600}
+// GFX900: [[META0:![0-9]+]] = !{i32 1, !"amdhsa_code_object_version", i32 500}
 // GFX900: [[META1:![0-9]+]] = !{i32 1, !"wchar_size", i32 4}
 // GFX900: [[META2:![0-9]+]] = !{i32 2, i32 0}
 // GFX900: [[TBAA3]] = !{[[META4:![0-9]+]], [[META4]], i64 0}
diff --git a/clang/test/Driver/Inputs/rocm-spack/llvm-amdgpu-4.0.0-ieagcs7inf7runpyfvepqkurasoglq4z/amdgcn/bitcode/oclc_abi_version_600.bc b/clang/test/Driver/Inputs/rocm-spack/llvm-amdgpu-4.0.0-ieagcs7inf7runpyfvepqkurasoglq4z/amdgcn/bitcode/oclc_abi_version_600.bc
diff --git a/clang/test/Driver/Inputs/rocm_resource_dir/lib/amdgcn/bitcode/oclc_abi_version_600.bc b/clang/test/Driver/Inputs/rocm_resource_dir/lib/amdgcn/bitcode/oclc_abi_version_600.bc
diff --git a/clang/test/Driver/Inputs/rocm_resource_dir/lib64/amdgcn/bitcode/oclc_abi_version_600.bc b/clang/test/Driver/Inputs/rocm_resource_dir/lib64/amdgcn/bitcode/oclc_abi_version_600.bc
diff --git a/clang/test/Driver/hip-device-libs.hip b/clang/test/Driver/hip-device-libs.hip
@@ -157,7 +157,7 @@
 // Test default code object version.
 // RUN: %clang -### --target=x86_64-linux-gnu --offload-arch=gfx900 \
 // RUN:   --rocm-path=%S/Inputs/rocm %S/Inputs/hip_multiple_inputs/b.hip \
-// RUN: 2>&1 | FileCheck %s --check-prefixes=ABI6
+// RUN: 2>&1 | FileCheck %s --check-prefixes=ABI5
 
 // Test default code object version with old device library without abi_version_400.bc
 // RUN: %clang -### --target=x86_64-linux-gnu --offload-arch=gfx900 \
diff --git a/clang/test/OpenMP/amdgcn_target_global_constructor.cpp b/clang/test/OpenMP/amdgcn_target_global_constructor.cpp
@@ -29,7 +29,7 @@ S A;
 // CHECK: @A = addrspace(1) global %struct.S zeroinitializer, align 4
 // CHECK: @llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 65535, ptr @_GLOBAL__sub_I_amdgcn_target_global_constructor.cpp, ptr null }]
 // CHECK: @llvm.global_dtors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 65535, ptr @__dtor_A, ptr null }]
-// CHECK: @__oclc_ABI_version = weak_odr hidden local_unnamed_addr addrspace(4) constant i32 600
+// CHECK: @__oclc_ABI_version = weak_odr hidden local_unnamed_addr addrspace(4) constant i32 500
 //.
 // CHECK-LABEL: define {{[^@]+}}@__cxx_global_var_init
 // CHECK-SAME: () #[[ATTR0:[0-9]+]] {
@@ -104,7 +104,7 @@ S A;
 // CHECK: attributes #[[ATTR4]] = { convergent nounwind }
 //.
 // CHECK: [[META0:![0-9]+]] = !{i32 1, !"A", i32 0, i32 0}
-// CHECK: [[META1:![0-9]+]] = !{i32 1, !"amdhsa_code_object_version", i32 600}
+// CHECK: [[META1:![0-9]+]] = !{i32 1, !"amdhsa_code_object_version", i32 500}
 // CHECK: [[META2:![0-9]+]] = !{i32 1, !"wchar_size", i32 4}
 // CHECK: [[META3:![0-9]+]] = !{i32 7, !"openmp", i32 51}
 // CHECK: [[META4:![0-9]+]] = !{i32 7, !"openmp-device", i32 51}
diff --git a/libc/cmake/modules/prepare_libc_gpu_build.cmake b/libc/cmake/modules/prepare_libc_gpu_build.cmake
@@ -104,7 +104,7 @@ if(LIBC_TARGET_ARCHITECTURE_IS_AMDGPU)
   # The AMDGPU environment uses different code objects to encode the ABI for
   # kernel calls and intrinsic functions. We want to specify this manually to
   # conform to whatever the test suite was built to handle.
-  set(LIBC_GPU_CODE_OBJECT_VERSION 6)
+  set(LIBC_GPU_CODE_OBJECT_VERSION 5)
 endif()
 
 if(LIBC_TARGET_ARCHITECTURE_IS_NVPTX)
diff --git a/llvm/docs/ReleaseNotes.md b/llvm/docs/ReleaseNotes.md
@@ -130,8 +130,6 @@ Changes to the AArch64 Backend
 Changes to the AMDGPU Backend
 -----------------------------
 
-* Bump the default `.amdhsa_code_object_version` to 6.
-
 * Removed `llvm.amdgcn.flat.atomic.fadd` and
   `llvm.amdgcn.global.atomic.fadd` intrinsics. Users should use the
   {ref}`atomicrmw <i_atomicrmw>` instruction with `fadd` and
diff --git a/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp b/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
@@ -34,7 +34,7 @@
 
 static llvm::cl::opt<unsigned> DefaultAMDHSACodeObjectVersion(
     "amdhsa-code-object-version", llvm::cl::Hidden,
-    llvm::cl::init(llvm::AMDGPU::AMDHSA_COV6),
+    llvm::cl::init(llvm::AMDGPU::AMDHSA_COV5),
     llvm::cl::desc("Set default AMDHSA Code Object Version (module flag "
                    "or asm directive still take priority if present)"));
 
diff --git a/llvm/test/CodeGen/AMDGPU/default_amdhsa_code_object_version.ll b/llvm/test/CodeGen/AMDGPU/default_amdhsa_code_object_version.ll
diff --git a/offload/plugins-nextgen/common/src/Utils/ELF.cpp b/offload/plugins-nextgen/common/src/Utils/ELF.cpp
@@ -64,9 +64,8 @@ checkMachineImpl(const object::ELFObjectFile<ELFT> &ELFObj, uint16_t EMachine) {
     if (Header.e_ident[EI_OSABI] != ELFOSABI_AMDGPU_HSA)
       return createError("Invalid AMD OS/ABI, must be AMDGPU_HSA");
     if (Header.e_ident[EI_ABIVERSION] != ELFABIVERSION_AMDGPU_HSA_V4 &&
-        Header.e_ident[EI_ABIVERSION] != ELFABIVERSION_AMDGPU_HSA_V5 &&
-        Header.e_ident[EI_ABIVERSION] != ELFABIVERSION_AMDGPU_HSA_V6)
-      return createError("Invalid AMD ABI version, must be version above 4");
+        Header.e_ident[EI_ABIVERSION] != ELFABIVERSION_AMDGPU_HSA_V5)
+      return createError("Invalid AMD ABI version, must be version 4 or 5");
     if ((Header.e_flags & EF_AMDGPU_MACH) < EF_AMDGPU_MACH_AMDGCN_GFX700 ||
         (Header.e_flags & EF_AMDGPU_MACH) > EF_AMDGPU_MACH_AMDGCN_GFX1201)
       return createError("Unsupported AMDGPU architecture");
