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
235 lines
8.9 KiB
C
235 lines
8.9 KiB
C
// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix=LINUX
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// RUN: %clang_cc1 -triple x86_64-windows-pc -emit-llvm %s -o - | FileCheck %s --check-prefix=WINDOWS
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int __attribute__((target("sse4.2"))) foo(void) { return 0; }
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int __attribute__((target("arch=sandybridge"))) foo(void);
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int __attribute__((target("arch=ivybridge"))) foo(void) {return 1;}
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int __attribute__((target("default"))) foo(void) { return 2; }
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int bar() {
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return foo();
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}
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inline int __attribute__((target("sse4.2"))) foo_inline(void) { return 0; }
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inline int __attribute__((target("arch=sandybridge"))) foo_inline(void);
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inline int __attribute__((target("arch=ivybridge"))) foo_inline(void) {return 1;}
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inline int __attribute__((target("default"))) foo_inline(void) { return 2; }
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int bar2() {
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return foo_inline();
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}
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inline __attribute__((target("default"))) void foo_decls(void);
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inline __attribute__((target("sse4.2"))) void foo_decls(void);
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void bar3() {
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foo_decls();
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}
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inline __attribute__((target("default"))) void foo_decls(void) {}
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inline __attribute__((target("sse4.2"))) void foo_decls(void) {}
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inline __attribute__((target("default"))) void foo_multi(int i, double d) {}
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inline __attribute__((target("avx,sse4.2"))) void foo_multi(int i, double d) {}
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inline __attribute__((target("sse4.2,fma4"))) void foo_multi(int i, double d) {}
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inline __attribute__((target("arch=ivybridge,fma4,sse4.2"))) void foo_multi(int i, double d) {}
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void bar4() {
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foo_multi(1, 5.0);
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}
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int fwd_decl_default(void);
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int __attribute__((target("default"))) fwd_decl_default(void) { return 2; }
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int fwd_decl_avx(void);
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int __attribute__((target("avx"))) fwd_decl_avx(void) { return 2; }
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int __attribute__((target("default"))) fwd_decl_avx(void) { return 2; }
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void bar5() {
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fwd_decl_default();
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fwd_decl_avx();
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}
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// LINUX: @foo.ifunc = weak_odr ifunc i32 (), i32 ()* ()* @foo.resolver
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// LINUX: @foo_inline.ifunc = weak_odr ifunc i32 (), i32 ()* ()* @foo_inline.resolver
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// LINUX: @foo_decls.ifunc = weak_odr ifunc void (), void ()* ()* @foo_decls.resolver
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// LINUX: @foo_multi.ifunc = weak_odr ifunc void (i32, double), void (i32, double)* ()* @foo_multi.resolver
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// LINUX: @fwd_decl_default.ifunc = weak_odr ifunc i32 (), i32 ()* ()* @fwd_decl_default.resolver
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// LINUX: @fwd_decl_avx.ifunc = weak_odr ifunc i32 (), i32 ()* ()* @fwd_decl_avx.resolver
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// LINUX: define i32 @foo.sse4.2()
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// LINUX: ret i32 0
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// LINUX: define i32 @foo.arch_ivybridge()
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// LINUX: ret i32 1
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// LINUX: define i32 @foo()
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// LINUX: ret i32 2
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// LINUX: define i32 @bar()
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// LINUX: call i32 @foo.ifunc()
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// WINDOWS: define dso_local i32 @foo.sse4.2()
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// WINDOWS: ret i32 0
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// WINDOWS: define dso_local i32 @foo.arch_ivybridge()
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// WINDOWS: ret i32 1
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// WINDOWS: define dso_local i32 @foo()
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// WINDOWS: ret i32 2
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// WINDOWS: define dso_local i32 @bar()
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// WINDOWS: call i32 @foo.resolver()
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// LINUX: define weak_odr i32 ()* @foo.resolver() comdat
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// LINUX: call void @__cpu_indicator_init()
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// LINUX: ret i32 ()* @foo.arch_sandybridge
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// LINUX: ret i32 ()* @foo.arch_ivybridge
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// LINUX: ret i32 ()* @foo.sse4.2
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// LINUX: ret i32 ()* @foo
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// WINDOWS: define weak_odr dso_local i32 @foo.resolver() comdat
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// WINDOWS: call void @__cpu_indicator_init()
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// WINDOWS: call i32 @foo.arch_sandybridge
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// WINDOWS: call i32 @foo.arch_ivybridge
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// WINDOWS: call i32 @foo.sse4.2
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// WINDOWS: call i32 @foo
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// LINUX: define i32 @bar2()
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// LINUX: call i32 @foo_inline.ifunc()
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// WINDOWS: define dso_local i32 @bar2()
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// WINDOWS: call i32 @foo_inline.resolver()
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// LINUX: define weak_odr i32 ()* @foo_inline.resolver() comdat
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// LINUX: call void @__cpu_indicator_init()
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// LINUX: ret i32 ()* @foo_inline.arch_sandybridge
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// LINUX: ret i32 ()* @foo_inline.arch_ivybridge
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// LINUX: ret i32 ()* @foo_inline.sse4.2
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// LINUX: ret i32 ()* @foo_inline
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// WINDOWS: define weak_odr dso_local i32 @foo_inline.resolver() comdat
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// WINDOWS: call void @__cpu_indicator_init()
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// WINDOWS: call i32 @foo_inline.arch_sandybridge
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// WINDOWS: call i32 @foo_inline.arch_ivybridge
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// WINDOWS: call i32 @foo_inline.sse4.2
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// WINDOWS: call i32 @foo_inline
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// LINUX: define void @bar3()
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// LINUX: call void @foo_decls.ifunc()
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// WINDOWS: define dso_local void @bar3()
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// WINDOWS: call void @foo_decls.resolver()
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// LINUX: define weak_odr void ()* @foo_decls.resolver() comdat
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// LINUX: ret void ()* @foo_decls.sse4.2
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// LINUX: ret void ()* @foo_decls
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// WINDOWS: define weak_odr dso_local void @foo_decls.resolver() comdat
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// WINDOWS: call void @foo_decls.sse4.2
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// WINDOWS: call void @foo_decls
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// LINUX: define void @bar4()
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// LINUX: call void @foo_multi.ifunc(i32 1, double 5.{{[0+e]*}})
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// WINDOWS: define dso_local void @bar4()
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// WINDOWS: call void @foo_multi.resolver(i32 1, double 5.{{[0+e]*}})
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// LINUX: define weak_odr void (i32, double)* @foo_multi.resolver() comdat
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// LINUX: and i32 %{{.*}}, 4352
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// LINUX: icmp eq i32 %{{.*}}, 4352
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// LINUX: ret void (i32, double)* @foo_multi.fma4_sse4.2
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// LINUX: icmp eq i32 %{{.*}}, 12
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// LINUX: and i32 %{{.*}}, 4352
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// LINUX: icmp eq i32 %{{.*}}, 4352
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// LINUX: ret void (i32, double)* @foo_multi.arch_ivybridge_fma4_sse4.2
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// LINUX: and i32 %{{.*}}, 768
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// LINUX: icmp eq i32 %{{.*}}, 768
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// LINUX: ret void (i32, double)* @foo_multi.avx_sse4.2
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// LINUX: ret void (i32, double)* @foo_multi
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// WINDOWS: define weak_odr dso_local void @foo_multi.resolver(i32 %0, double %1) comdat
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// WINDOWS: and i32 %{{.*}}, 4352
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// WINDOWS: icmp eq i32 %{{.*}}, 4352
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// WINDOWS: call void @foo_multi.fma4_sse4.2(i32 %0, double %1)
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// WINDOWS-NEXT: ret void
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// WINDOWS: icmp eq i32 %{{.*}}, 12
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// WINDOWS: and i32 %{{.*}}, 4352
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// WINDOWS: icmp eq i32 %{{.*}}, 4352
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// WINDOWS: call void @foo_multi.arch_ivybridge_fma4_sse4.2(i32 %0, double %1)
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// WINDOWS-NEXT: ret void
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// WINDOWS: and i32 %{{.*}}, 768
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// WINDOWS: icmp eq i32 %{{.*}}, 768
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// WINDOWS: call void @foo_multi.avx_sse4.2(i32 %0, double %1)
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// WINDOWS-NEXT: ret void
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// WINDOWS: call void @foo_multi(i32 %0, double %1)
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// WINDOWS-NEXT: ret void
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// LINUX: define i32 @fwd_decl_default()
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// LINUX: ret i32 2
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// LINUX: define i32 @fwd_decl_avx.avx()
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// LINUX: ret i32 2
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// LINUX: define i32 @fwd_decl_avx()
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// LINUX: ret i32 2
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// WINDOWS: define dso_local i32 @fwd_decl_default()
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// WINDOWS: ret i32 2
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// WINDOWS: define dso_local i32 @fwd_decl_avx.avx()
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// WINDOWS: ret i32 2
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// WINDOWS: define dso_local i32 @fwd_decl_avx()
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// WINDOWS: ret i32 2
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// LINUX: define void @bar5()
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// LINUX: call i32 @fwd_decl_default.ifunc()
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// LINUX: call i32 @fwd_decl_avx.ifunc()
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// WINDOWS: define dso_local void @bar5()
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// WINDOWS: call i32 @fwd_decl_default.resolver()
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// WINDOWS: call i32 @fwd_decl_avx.resolver()
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// LINUX: define weak_odr i32 ()* @fwd_decl_default.resolver() comdat
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// LINUX: call void @__cpu_indicator_init()
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// LINUX: ret i32 ()* @fwd_decl_default
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// LINUX: define weak_odr i32 ()* @fwd_decl_avx.resolver() comdat
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// LINUX: call void @__cpu_indicator_init()
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// LINUX: ret i32 ()* @fwd_decl_avx.avx
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// LINUX: ret i32 ()* @fwd_decl_avx
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// WINDOWS: define weak_odr dso_local i32 @fwd_decl_default.resolver() comdat
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// WINDOWS: call void @__cpu_indicator_init()
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// WINDOWS: call i32 @fwd_decl_default
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// WINDOWS: define weak_odr dso_local i32 @fwd_decl_avx.resolver() comdat
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// WINDOWS: call void @__cpu_indicator_init()
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// WINDOWS: call i32 @fwd_decl_avx.avx
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// WINDOWS: call i32 @fwd_decl_avx
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// LINUX: declare i32 @foo.arch_sandybridge()
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// WINDOWS: declare dso_local i32 @foo.arch_sandybridge()
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// LINUX: define linkonce i32 @foo_inline.sse4.2()
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// LINUX: ret i32 0
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// WINDOWS: define linkonce_odr dso_local i32 @foo_inline.sse4.2()
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// WINDOWS: ret i32 0
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// LINUX: declare i32 @foo_inline.arch_sandybridge()
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// WINDOWS: declare dso_local i32 @foo_inline.arch_sandybridge()
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// LINUX: define linkonce i32 @foo_inline.arch_ivybridge()
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// LINUX: ret i32 1
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// LINUX: define linkonce i32 @foo_inline()
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// LINUX: ret i32 2
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// WINDOWS: define linkonce_odr dso_local i32 @foo_inline.arch_ivybridge()
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// WINDOWS: ret i32 1
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// WINDOWS: define linkonce_odr dso_local i32 @foo_inline()
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// WINDOWS: ret i32 2
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// LINUX: define linkonce void @foo_decls()
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// LINUX: define linkonce void @foo_decls.sse4.2()
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// WINDOWS: define linkonce_odr dso_local void @foo_decls()
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// WINDOWS: define linkonce_odr dso_local void @foo_decls.sse4.2()
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// LINUX: define linkonce void @foo_multi(i32 %{{[^,]+}}, double %{{[^\)]+}})
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// LINUX: define linkonce void @foo_multi.avx_sse4.2(i32 %{{[^,]+}}, double %{{[^\)]+}})
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// LINUX: define linkonce void @foo_multi.fma4_sse4.2(i32 %{{[^,]+}}, double %{{[^\)]+}})
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// LINUX: define linkonce void @foo_multi.arch_ivybridge_fma4_sse4.2(i32 %{{[^,]+}}, double %{{[^\)]+}})
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// WINDOWS: define linkonce_odr dso_local void @foo_multi(i32 %{{[^,]+}}, double %{{[^\)]+}})
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// WINDOWS: define linkonce_odr dso_local void @foo_multi.avx_sse4.2(i32 %{{[^,]+}}, double %{{[^\)]+}})
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// WINDOWS: define linkonce_odr dso_local void @foo_multi.fma4_sse4.2(i32 %{{[^,]+}}, double %{{[^\)]+}})
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// WINDOWS: define linkonce_odr dso_local void @foo_multi.arch_ivybridge_fma4_sse4.2(i32 %{{[^,]+}}, double %{{[^\)]+}})
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