9ca1b94a6d
Multi-versioned functions defined by cpu_dispatch and implemented with IFunc can not be called outside the translation units where they are defined due to lack of symbols. This patch add function aliases for these functions and thus make them visible outside. Differential Revision: https://reviews.llvm.org/D67058 Patch by Senran Zhang llvm-svn: 371586
82 lines
4.4 KiB
C++
82 lines
4.4 KiB
C++
// RUN: %clang_cc1 -std=c++11 -triple i686-windows-msvc -emit-llvm %s -o - | FileCheck %s --check-prefix=WINDOWS
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// RUN: %clang_cc1 -std=c++11 -triple x86_64-windows-msvc -emit-llvm %s -o - | FileCheck %s --check-prefix=WINDOWS64
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struct Foo {
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Foo();
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Foo(const Foo &o);
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~Foo();
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int x;
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};
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int __attribute__((target("default"))) bar(Foo o) { return o.x; }
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int __attribute__((target("sse4.2"))) bar(Foo o) { return o.x + 1; }
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int __attribute__((target("arch=ivybridge"))) bar(Foo o) { return o.x + 2; }
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void usage() {
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Foo f;
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bar(f);
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}
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// WINDOWS: define dso_local i32 @"?bar@@YAHUFoo@@@Z"(<{ %struct.Foo }>* inalloca %0)
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// WINDOWS: %[[O:[0-9a-zA-Z]+]] = getelementptr inbounds <{ %struct.Foo }>, <{ %struct.Foo }>* %0, i32 0, i32 0
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// WINDOWS: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, %struct.Foo* %[[O]], i32 0, i32 0
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// WINDOWS: %[[LOAD:[0-9a-zA-Z]+]] = load i32, i32* %[[X]]
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// WINDOWS: ret i32 %[[LOAD]]
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// WINDOWS: define dso_local i32 @"?bar@@YAHUFoo@@@Z.sse4.2"(<{ %struct.Foo }>* inalloca %0)
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// WINDOWS: %[[O:[0-9a-zA-Z]+]] = getelementptr inbounds <{ %struct.Foo }>, <{ %struct.Foo }>* %0, i32 0, i32 0
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// WINDOWS: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, %struct.Foo* %[[O]], i32 0, i32 0
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// WINDOWS: %[[LOAD:[0-9a-zA-Z]+]] = load i32, i32* %[[X]]
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// WINDOWS: %[[ADD:[0-9a-zA-Z]+]] = add nsw i32 %[[LOAD]], 1
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// WINDOWS: ret i32 %[[ADD]]
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// WINDOWS: define dso_local i32 @"?bar@@YAHUFoo@@@Z.arch_ivybridge"(<{ %struct.Foo }>* inalloca %0)
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// WINDOWS: %[[O:[0-9a-zA-Z]+]] = getelementptr inbounds <{ %struct.Foo }>, <{ %struct.Foo }>* %0, i32 0, i32 0
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// WINDOWS: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, %struct.Foo* %[[O]], i32 0, i32 0
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// WINDOWS: %[[LOAD:[0-9a-zA-Z]+]] = load i32, i32* %[[X]]
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// WINDOWS: %[[ADD:[0-9a-zA-Z]+]] = add nsw i32 %[[LOAD]], 2
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// WINDOWS: ret i32 %[[ADD]]
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// WINDOWS: define dso_local void @"?usage@@YAXXZ"()
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// WINDOWS: %[[F:[0-9a-zA-Z]+]] = alloca %struct.Foo
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// WINDOWS: %[[ARGMEM:[0-9a-zA-Z]+]] = alloca inalloca <{ %struct.Foo }>
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// WINDOWS: %[[CALL:[0-9a-zA-Z]+]] = call i32 @"?bar@@YAHUFoo@@@Z.resolver"(<{ %struct.Foo }>* inalloca %[[ARGMEM]])
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// WINDOWS: define weak_odr dso_local i32 @"?bar@@YAHUFoo@@@Z.resolver"(<{ %struct.Foo }>* %0)
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// WINDOWS: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z.arch_ivybridge"(<{ %struct.Foo }>* %0)
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// WINDOWS-NEXT: ret i32 %[[RET]]
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// WINDOWS: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z.sse4.2"(<{ %struct.Foo }>* %0)
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// WINDOWS-NEXT: ret i32 %[[RET]]
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// WINDOWS: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z"(<{ %struct.Foo }>* %0)
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// WINDOWS-NEXT: ret i32 %[[RET]]
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// WINDOWS64: define dso_local i32 @"?bar@@YAHUFoo@@@Z"(%struct.Foo* %[[O:[0-9a-zA-Z]+]])
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// WINDOWS64: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, %struct.Foo* %[[O]], i32 0, i32 0
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// WINDOWS64: %[[LOAD:[0-9a-zA-Z]+]] = load i32, i32* %[[X]]
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// WINDOWS64: ret i32 %[[LOAD]]
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// WINDOWS64: define dso_local i32 @"?bar@@YAHUFoo@@@Z.sse4.2"(%struct.Foo* %[[O:[0-9a-zA-Z]+]])
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// WINDOWS64: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, %struct.Foo* %[[O]], i32 0, i32 0
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// WINDOWS64: %[[LOAD:[0-9a-zA-Z]+]] = load i32, i32* %[[X]]
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// WINDOWS64: %[[ADD:[0-9a-zA-Z]+]] = add nsw i32 %[[LOAD]], 1
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// WINDOWS64: ret i32 %[[ADD]]
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// WINDOWS64: define dso_local i32 @"?bar@@YAHUFoo@@@Z.arch_ivybridge"(%struct.Foo* %[[O:[0-9a-zA-Z]+]])
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// WINDOWS64: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, %struct.Foo* %[[O]], i32 0, i32 0
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// WINDOWS64: %[[LOAD:[0-9a-zA-Z]+]] = load i32, i32* %[[X]]
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// WINDOWS64: %[[ADD:[0-9a-zA-Z]+]] = add nsw i32 %[[LOAD]], 2
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// WINDOWS64: ret i32 %[[ADD]]
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// WINDOWS64: define dso_local void @"?usage@@YAXXZ"()
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// WINDOWS64: %[[F:[0-9a-zA-Z]+]] = alloca %struct.Foo
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// WINDOWS64: %[[ARG:[0-9a-zA-Z.]+]] = alloca %struct.Foo
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// WINDOWS64: %[[CALL:[0-9a-zA-Z]+]] = call i32 @"?bar@@YAHUFoo@@@Z.resolver"(%struct.Foo* %[[ARG]])
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// WINDOWS64: define weak_odr dso_local i32 @"?bar@@YAHUFoo@@@Z.resolver"(%struct.Foo* %0)
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// WINDOWS64: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z.arch_ivybridge"(%struct.Foo* %0)
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// WINDOWS64-NEXT: ret i32 %[[RET]]
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// WINDOWS64: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z.sse4.2"(%struct.Foo* %0)
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// WINDOWS64-NEXT: ret i32 %[[RET]]
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// WINDOWS64: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z"(%struct.Foo* %0)
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// WINDOWS64-NEXT: ret i32 %[[RET]]
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