49ff6a96a7
Summary: We use the `llvm.amgcn.abi.version` varaible to control code generation. This is emitted in every module now to indicate what should be used when compiling. Previously, the logic caused us to emit an external reference to this variable when creating the code for the `none` type. This would then cause us not to emit the actual definition. This patch refines the logic to create the external reference, and then update it if it is found unset by the time we emit the global. I had to remove the reference to `GetOrCreateLLVmGlobal` because it did not accept the proper address space.
24 lines
1.5 KiB
C
24 lines
1.5 KiB
C
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --check-globals --version 3
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// RUN: %clang_cc1 -cc1 -triple amdgcn-amd-amdhsa -emit-llvm -mcode-object-version=none %s -o - | FileCheck %s
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//.
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// CHECK: @llvm.amdgcn.abi.version = weak_odr hidden local_unnamed_addr addrspace(4) constant i32 0
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//.
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// CHECK-LABEL: define dso_local i32 @foo(
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// CHECK-SAME: ) #[[ATTR0:[0-9]+]] {
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// CHECK-NEXT: entry:
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// CHECK-NEXT: [[RETVAL:%.*]] = alloca i32, align 4, addrspace(5)
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// CHECK-NEXT: [[RETVAL_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[RETVAL]] to ptr
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// CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr addrspace(4) @llvm.amdgcn.abi.version, align 4
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// CHECK-NEXT: [[TMP1:%.*]] = icmp sge i32 [[TMP0]], 500
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// CHECK-NEXT: [[TMP2:%.*]] = call align 8 dereferenceable(256) ptr addrspace(4) @llvm.amdgcn.implicitarg.ptr()
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// CHECK-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr addrspace(4) [[TMP2]], i32 12
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// CHECK-NEXT: [[TMP4:%.*]] = call align 4 dereferenceable(64) ptr addrspace(4) @llvm.amdgcn.dispatch.ptr()
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// CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr addrspace(4) [[TMP4]], i32 4
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// CHECK-NEXT: [[TMP6:%.*]] = select i1 [[TMP1]], ptr addrspace(4) [[TMP3]], ptr addrspace(4) [[TMP5]]
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// CHECK-NEXT: [[TMP7:%.*]] = load i16, ptr addrspace(4) [[TMP6]], align 2, !range [[RNG2:![0-9]+]], !invariant.load !3, !noundef !3
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// CHECK-NEXT: [[CONV:%.*]] = zext i16 [[TMP7]] to i32
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// CHECK-NEXT: ret i32 [[CONV]]
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//
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int foo() { return __builtin_amdgcn_workgroup_size_x(); }
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