| // RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s | FileCheck %s |
| |
| |
| // Each called version should have an IFunc. |
| // CHECK: @SingleVersion.ifunc = ifunc void (), void ()* ()* @SingleVersion.resolver |
| // CHECK: @TwoVersions.ifunc = ifunc void (), void ()* ()* @TwoVersions.resolver |
| // CHECK: @TwoVersionsSameAttr.ifunc = ifunc void (), void ()* ()* @TwoVersionsSameAttr.resolver |
| // CHECK: @ThreeVersionsSameAttr.ifunc = ifunc void (), void ()* ()* @ThreeVersionsSameAttr.resolver |
| |
| __attribute__((cpu_specific(ivybridge))) |
| void SingleVersion(void){} |
| // CHECK: define void @SingleVersion.S() #[[S:[0-9]+]] |
| |
| __attribute__((cpu_specific(ivybridge))) |
| void NotCalled(void){} |
| // CHECK: define void @NotCalled.S() #[[S]] |
| |
| // Done before any of the implementations. |
| __attribute__((cpu_dispatch(ivybridge, knl))) |
| void TwoVersions(void); |
| // CHECK: define void ()* @TwoVersions.resolver() |
| // CHECK: call void @__cpu_indicator_init |
| // CHECK: ret void ()* @TwoVersions.Z |
| // CHECK: ret void ()* @TwoVersions.S |
| // CHECK: call void @llvm.trap |
| // CHECK: unreachable |
| |
| __attribute__((cpu_specific(ivybridge))) |
| void TwoVersions(void){} |
| // CHECK: define void @TwoVersions.S() #[[S]] |
| |
| __attribute__((cpu_specific(knl))) |
| void TwoVersions(void){} |
| // CHECK: define void @TwoVersions.Z() #[[K:[0-9]+]] |
| |
| __attribute__((cpu_specific(ivybridge, knl))) |
| void TwoVersionsSameAttr(void){} |
| // CHECK: define void @TwoVersionsSameAttr.S() #[[S]] |
| // CHECK: define void @TwoVersionsSameAttr.Z() #[[K]] |
| |
| __attribute__((cpu_specific(atom, ivybridge, knl))) |
| void ThreeVersionsSameAttr(void){} |
| // CHECK: define void @ThreeVersionsSameAttr.O() #[[O:[0-9]+]] |
| // CHECK: define void @ThreeVersionsSameAttr.S() #[[S]] |
| // CHECK: define void @ThreeVersionsSameAttr.Z() #[[K]] |
| |
| void usages() { |
| SingleVersion(); |
| // CHECK: @SingleVersion.ifunc() |
| TwoVersions(); |
| // CHECK: @TwoVersions.ifunc() |
| TwoVersionsSameAttr(); |
| // CHECK: @TwoVersionsSameAttr.ifunc() |
| ThreeVersionsSameAttr(); |
| // CHECK: @ThreeVersionsSameAttr.ifunc() |
| } |
| |
| // has an extra config to emit! |
| __attribute__((cpu_dispatch(ivybridge, knl, atom))) |
| void TwoVersionsSameAttr(void); |
| // CHECK: define void ()* @TwoVersionsSameAttr.resolver() |
| // CHECK: ret void ()* @TwoVersionsSameAttr.Z |
| // CHECK: ret void ()* @TwoVersionsSameAttr.S |
| // CHECK: ret void ()* @TwoVersionsSameAttr.O |
| // CHECK: call void @llvm.trap |
| // CHECK: unreachable |
| |
| __attribute__((cpu_dispatch(atom, ivybridge, knl))) |
| void ThreeVersionsSameAttr(void){} |
| // CHECK: define void ()* @ThreeVersionsSameAttr.resolver() |
| // CHECK: call void @__cpu_indicator_init |
| // CHECK: ret void ()* @ThreeVersionsSameAttr.Z |
| // CHECK: ret void ()* @ThreeVersionsSameAttr.S |
| // CHECK: ret void ()* @ThreeVersionsSameAttr.O |
| // CHECK: call void @llvm.trap |
| // CHECK: unreachable |
| |
| // No Cpu Specific options. |
| __attribute__((cpu_dispatch(atom, ivybridge, knl))) |
| void NoSpecifics(void); |
| // CHECK: define void ()* @NoSpecifics.resolver() |
| // CHECK: call void @__cpu_indicator_init |
| // CHECK: ret void ()* @NoSpecifics.Z |
| // CHECK: ret void ()* @NoSpecifics.S |
| // CHECK: ret void ()* @NoSpecifics.O |
| // CHECK: call void @llvm.trap |
| // CHECK: unreachable |
| |
| __attribute__((cpu_dispatch(atom, generic, ivybridge, knl))) |
| void HasGeneric(void); |
| // CHECK: define void ()* @HasGeneric.resolver() |
| // CHECK: call void @__cpu_indicator_init |
| // CHECK: ret void ()* @HasGeneric.Z |
| // CHECK: ret void ()* @HasGeneric.S |
| // CHECK: ret void ()* @HasGeneric.O |
| // CHECK: ret void ()* @HasGeneric.A |
| // CHECK-NOT: call void @llvm.trap |
| |
| __attribute__((cpu_dispatch(atom, generic, pentium))) |
| int GenericAndPentium(int i, double d); |
| // CHECK: define i32 (i32, double)* @GenericAndPentium.resolver() |
| // CHECK: call void @__cpu_indicator_init |
| // CHECK: ret i32 (i32, double)* @GenericAndPentium.O |
| // CHECK: ret i32 (i32, double)* @GenericAndPentium.B |
| // CHECK-NOT: ret i32 (i32, double)* @GenericAndPentium.A |
| // CHECK-NOT: call void @llvm.trap |
| |
| // CHECK: attributes #[[S]] = {{.*}}"target-features"="+avx,+cmov,+f16c,+mmx,+popcnt,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+ssse3,+x87,+xsave" |
| // CHECK: attributes #[[K]] = {{.*}}"target-features"="+adx,+avx,+avx2,+avx512cd,+avx512er,+avx512f,+avx512pf,+bmi,+cmov,+f16c,+fma,+lzcnt,+mmx,+movbe,+popcnt,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+ssse3,+x87,+xsave" |
| // CHECK: attributes #[[O]] = {{.*}}"target-features"="+cmov,+mmx,+movbe,+sse,+sse2,+sse3,+ssse3,+x87" |
