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d173dfe7cd4505aa50d109eee91c0c3c48e1d1db
RedBear-OS/local/recipes/dev/libclc/source/clang/test/CodeGen/attr-cpuspecific.c
T
vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class) 
verify-patch-sanity.py validates every active recipe .patch has internally-
consistent hunk line counts — catching the 'malformed patch at line N' failure
at commit/CI/preflight time instead of hours into a cook. This cycle hit that
class three times (qtwaylandscanner, sddm, xwayland), each only discovered when
cookbook tried to apply the patch.

Running it across the repo found 29 latent malformed patches (validated against
GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22').
They were harmless only because they sit in vendored recipes (baked, not re-
applied) — but would fail on any version-bump re-derivation. --fix recounts the
hunk headers (body untouched) and repaired all 29.

Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test
(test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats
(empty placeholders, bare-@@ git hunks).
2026-08-01 05:13:02 +03:00

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// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,LINUX
// RUN: %clang_cc1 -triple x86_64-apple-macos -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,LINUX
// RUN: %clang_cc1 -triple x86_64-windows-pc -fms-compatibility -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,WINDOWS
#ifdef _WIN64
#define ATTR(X) __declspec(X)
#else
#define ATTR(X) __attribute__((X))
#endif // _WIN64
// Each version should have an IFunc and an alias.
// LINUX: @SingleVersion = weak_odr alias void (), ptr @SingleVersion.ifunc
// LINUX: @TwoVersions = weak_odr alias void (), ptr @TwoVersions.ifunc
// LINUX: @OrderDispatchUsageSpecific = weak_odr alias void (), ptr @OrderDispatchUsageSpecific.ifunc
// LINUX: @TwoVersionsSameAttr = weak_odr alias void (), ptr @TwoVersionsSameAttr.ifunc
// LINUX: @ThreeVersionsSameAttr = weak_odr alias void (), ptr @ThreeVersionsSameAttr.ifunc
// LINUX: @OrderSpecificUsageDispatch = weak_odr alias void (), ptr @OrderSpecificUsageDispatch.ifunc
// LINUX: @NoSpecifics = weak_odr alias void (), ptr @NoSpecifics.ifunc
// LINUX: @HasGeneric = weak_odr alias void (), ptr @HasGeneric.ifunc
// LINUX: @HasParams = weak_odr alias void (i32, double), ptr @HasParams.ifunc
// LINUX: @HasParamsAndReturn = weak_odr alias i32 (i32, double), ptr @HasParamsAndReturn.ifunc
// LINUX: @GenericAndPentium = weak_odr alias i32 (i32, double), ptr @GenericAndPentium.ifunc
// LINUX: @DispatchFirst = weak_odr alias i32 (), ptr @DispatchFirst.ifunc
// LINUX: @SingleVersion.ifunc = weak_odr ifunc void (), ptr @SingleVersion.resolver
// LINUX: @TwoVersions.ifunc = weak_odr ifunc void (), ptr @TwoVersions.resolver
// LINUX: @OrderDispatchUsageSpecific.ifunc = weak_odr ifunc void (), ptr @OrderDispatchUsageSpecific.resolver
// LINUX: @TwoVersionsSameAttr.ifunc = weak_odr ifunc void (), ptr @TwoVersionsSameAttr.resolver
// LINUX: @ThreeVersionsSameAttr.ifunc = weak_odr ifunc void (), ptr @ThreeVersionsSameAttr.resolver
// LINUX: @OrderSpecificUsageDispatch.ifunc = weak_odr ifunc void (), ptr @OrderSpecificUsageDispatch.resolver
// LINUX: @NoSpecifics.ifunc = weak_odr ifunc void (), ptr @NoSpecifics.resolver
// LINUX: @HasGeneric.ifunc = weak_odr ifunc void (), ptr @HasGeneric.resolver
// LINUX: @HasParams.ifunc = weak_odr ifunc void (i32, double), ptr @HasParams.resolver
// LINUX: @HasParamsAndReturn.ifunc = weak_odr ifunc i32 (i32, double), ptr @HasParamsAndReturn.resolver
// LINUX: @GenericAndPentium.ifunc = weak_odr ifunc i32 (i32, double), ptr @GenericAndPentium.resolver
// LINUX: @DispatchFirst.ifunc = weak_odr ifunc i32 (), ptr @DispatchFirst.resolver
ATTR(cpu_specific(ivybridge))
void SingleVersion(void){}
// LINUX: define{{.*}} void @SingleVersion.S() #[[S:[0-9]+]]
// WINDOWS: define dso_local void @SingleVersion.S() #[[S:[0-9]+]]
ATTR(cpu_dispatch(ivybridge))
void SingleVersion(void);
// LINUX: define weak_odr ptr @SingleVersion.resolver()
// LINUX: call void @__cpu_indicator_init
// LINUX: %[[FEAT_INIT:.+]] = load i32, ptr getelementptr inbounds ({ i32, i32, i32, [1 x i32] }, ptr @__cpu_model, i32 0, i32 3, i32 0), align 4
// LINUX: %[[FEAT_JOIN:.+]] = and i32 %[[FEAT_INIT]], 525311
// LINUX: %[[FEAT_CHECK:.+]] = icmp eq i32 %[[FEAT_JOIN]], 525311
// LINUX: ret ptr @SingleVersion.S
// LINUX: call void @llvm.trap
// LINUX: unreachable
// WINDOWS: define weak_odr dso_local void @SingleVersion() comdat
// WINDOWS: call void @__cpu_indicator_init()
// WINDOWS: %[[FEAT_INIT:.+]] = load i32, ptr getelementptr inbounds ({ i32, i32, i32, [1 x i32] }, ptr @__cpu_model, i32 0, i32 3, i32 0), align 4
// WINDOWS: %[[FEAT_JOIN:.+]] = and i32 %[[FEAT_INIT]], 525311
// WINDOWS: %[[FEAT_CHECK:.+]] = icmp eq i32 %[[FEAT_JOIN]], 525311
// WINDOWS: call void @SingleVersion.S()
// WINDOWS-NEXT: ret void
// WINDOWS: call void @llvm.trap
// WINDOWS: unreachable
ATTR(cpu_specific(ivybridge))
void NotCalled(void){}
// LINUX: define{{.*}} void @NotCalled.S() #[[S]]
// WINDOWS: define dso_local void @NotCalled.S() #[[S:[0-9]+]]
// Done before any of the implementations. Also has an undecorated forward
// declaration.
void TwoVersions(void);
ATTR(cpu_dispatch(ivybridge, knl))
void TwoVersions(void);
// LINUX: define weak_odr ptr @TwoVersions.resolver()
// LINUX: call void @__cpu_indicator_init
// LINUX: %[[FEAT_INIT:.+]] = load i32, ptr getelementptr inbounds ({ i32, i32, i32, [1 x i32] }, ptr @__cpu_model, i32 0, i32 3, i32 0), align 4
// LINUX: %[[FEAT_JOIN:.+]] = and i32 %[[FEAT_INIT]], 9422847
// LINUX: %[[FEAT_CHECK:.+]] = icmp eq i32 %[[FEAT_JOIN]], 9422847
// LINUX: ret ptr @TwoVersions.Z
// LINUX: ret ptr @TwoVersions.S
// LINUX: call void @llvm.trap
// LINUX: unreachable
// WINDOWS: define weak_odr dso_local void @TwoVersions() comdat
// WINDOWS: call void @__cpu_indicator_init()
// WINDOWS: %[[FEAT_INIT:.+]] = load i32, ptr getelementptr inbounds ({ i32, i32, i32, [1 x i32] }, ptr @__cpu_model, i32 0, i32 3, i32 0), align 4
// WINDOWS: %[[FEAT_JOIN:.+]] = and i32 %[[FEAT_INIT]], 9422847
// WINDOWS: %[[FEAT_CHECK:.+]] = icmp eq i32 %[[FEAT_JOIN]], 9422847
// WINDOWS: call void @TwoVersions.Z()
// WINDOWS-NEXT: ret void
// WINDOWS: call void @TwoVersions.S()
// WINDOWS-NEXT: ret void
// WINDOWS: call void @llvm.trap
// WINDOWS: unreachable
ATTR(cpu_specific(ivybridge))
void TwoVersions(void){}
// CHECK: define {{.*}}void @TwoVersions.S() #[[S]]
ATTR(cpu_specific(knl))
void TwoVersions(void){}
// CHECK: define {{.*}}void @TwoVersions.Z() #[[K:[0-9]+]]
ATTR(cpu_specific(ivybridge, knl))
void TwoVersionsSameAttr(void){}
// CHECK: define {{.*}}void @TwoVersionsSameAttr.S() #[[S]]
// CHECK: define {{.*}}void @TwoVersionsSameAttr.Z() #[[K]]
ATTR(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]]
ATTR(cpu_specific(knl))
void CpuSpecificNoDispatch(void) {}
// CHECK: define {{.*}}void @CpuSpecificNoDispatch.Z() #[[K:[0-9]+]]
ATTR(cpu_dispatch(knl))
void OrderDispatchUsageSpecific(void);
// LINUX: define weak_odr ptr @OrderDispatchUsageSpecific.resolver()
// LINUX: call void @__cpu_indicator_init
// LINUX: ret ptr @OrderDispatchUsageSpecific.Z
// LINUX: call void @llvm.trap
// LINUX: unreachable
// WINDOWS: define weak_odr dso_local void @OrderDispatchUsageSpecific() comdat
// WINDOWS: call void @__cpu_indicator_init()
// WINDOWS: call void @OrderDispatchUsageSpecific.Z()
// WINDOWS-NEXT: ret void
// WINDOWS: call void @llvm.trap
// WINDOWS: unreachable
// CHECK: define {{.*}}void @OrderDispatchUsageSpecific.Z()
ATTR(cpu_specific(knl))
void OrderSpecificUsageDispatch(void) {}
// CHECK: define {{.*}}void @OrderSpecificUsageDispatch.Z() #[[K:[0-9]+]]
void usages(void) {
SingleVersion();
// LINUX: @SingleVersion.ifunc()
// WINDOWS: @SingleVersion()
TwoVersions();
// LINUX: @TwoVersions.ifunc()
// WINDOWS: @TwoVersions()
TwoVersionsSameAttr();
// LINUX: @TwoVersionsSameAttr.ifunc()
// WINDOWS: @TwoVersionsSameAttr()
ThreeVersionsSameAttr();
// LINUX: @ThreeVersionsSameAttr.ifunc()
// WINDOWS: @ThreeVersionsSameAttr()
CpuSpecificNoDispatch();
// LINUX: @CpuSpecificNoDispatch.ifunc()
// WINDOWS: @CpuSpecificNoDispatch()
//
// Adding another use of CpuSpecificNoDispatch reproduces the
// crash in https://github.com/llvm/llvm-project/issues/115299
CpuSpecificNoDispatch();
// LINUX: @CpuSpecificNoDispatch.ifunc()
// WINDOWS: @CpuSpecificNoDispatch()
OrderDispatchUsageSpecific();
// LINUX: @OrderDispatchUsageSpecific.ifunc()
// WINDOWS: @OrderDispatchUsageSpecific()
OrderSpecificUsageDispatch();
// LINUX: @OrderSpecificUsageDispatch.ifunc()
// WINDOWS: @OrderSpecificUsageDispatch()
}
// LINUX: declare void @CpuSpecificNoDispatch.ifunc()
// has an extra config to emit!
ATTR(cpu_dispatch(ivybridge, knl, atom))
void TwoVersionsSameAttr(void);
// LINUX: define weak_odr ptr @TwoVersionsSameAttr.resolver()
// LINUX: ret ptr @TwoVersionsSameAttr.Z
// LINUX: ret ptr @TwoVersionsSameAttr.S
// LINUX: ret ptr @TwoVersionsSameAttr.O
// LINUX: call void @llvm.trap
// LINUX: unreachable
// WINDOWS: define weak_odr dso_local void @TwoVersionsSameAttr() comdat
// WINDOWS: call void @TwoVersionsSameAttr.Z
// WINDOWS-NEXT: ret void
// WINDOWS: call void @TwoVersionsSameAttr.S
// WINDOWS-NEXT: ret void
// WINDOWS: call void @TwoVersionsSameAttr.O
// WINDOWS-NEXT: ret void
// WINDOWS: call void @llvm.trap
// WINDOWS: unreachable
ATTR(cpu_dispatch(atom, ivybridge, knl))
void ThreeVersionsSameAttr(void){}
// LINUX: define weak_odr ptr @ThreeVersionsSameAttr.resolver()
// LINUX: call void @__cpu_indicator_init
// LINUX: ret ptr @ThreeVersionsSameAttr.Z
// LINUX: ret ptr @ThreeVersionsSameAttr.S
// LINUX: ret ptr @ThreeVersionsSameAttr.O
// LINUX: call void @llvm.trap
// LINUX: unreachable
// WINDOWS: define weak_odr dso_local void @ThreeVersionsSameAttr() comdat
// WINDOWS: call void @__cpu_indicator_init
// WINDOWS: call void @ThreeVersionsSameAttr.Z
// WINDOWS-NEXT: ret void
// WINDOWS: call void @ThreeVersionsSameAttr.S
// WINDOWS-NEXT: ret void
// WINDOWS: call void @ThreeVersionsSameAttr.O
// WINDOWS-NEXT: ret void
// WINDOWS: call void @llvm.trap
// WINDOWS: unreachable
ATTR(cpu_dispatch(knl))
void OrderSpecificUsageDispatch(void);
// LINUX: define weak_odr ptr @OrderSpecificUsageDispatch.resolver()
// LINUX: ret ptr @OrderSpecificUsageDispatch.Z
// WINDOWS: define weak_odr dso_local void @OrderSpecificUsageDispatch() comdat
// WINDOWS: call void @__cpu_indicator_init
// WINDOWS: call void @OrderSpecificUsageDispatch.Z
// WINDOWS-NEXT: ret void
// No Cpu Specific options.
ATTR(cpu_dispatch(atom, ivybridge, knl))
void NoSpecifics(void);
// LINUX: define weak_odr ptr @NoSpecifics.resolver()
// LINUX: call void @__cpu_indicator_init
// LINUX: ret ptr @NoSpecifics.Z
// LINUX: ret ptr @NoSpecifics.S
// LINUX: ret ptr @NoSpecifics.O
// LINUX: call void @llvm.trap
// LINUX: unreachable
// WINDOWS: define weak_odr dso_local void @NoSpecifics() comdat
// WINDOWS: call void @__cpu_indicator_init
// WINDOWS: call void @NoSpecifics.Z
// WINDOWS-NEXT: ret void
// WINDOWS: call void @NoSpecifics.S
// WINDOWS-NEXT: ret void
// WINDOWS: call void @NoSpecifics.O
// WINDOWS-NEXT: ret void
// WINDOWS: call void @llvm.trap
// WINDOWS: unreachable
ATTR(cpu_dispatch(atom, generic, ivybridge, knl))
void HasGeneric(void);
// LINUX: define weak_odr ptr @HasGeneric.resolver()
// LINUX: call void @__cpu_indicator_init
// LINUX: ret ptr @HasGeneric.Z
// LINUX: ret ptr @HasGeneric.S
// LINUX: ret ptr @HasGeneric.O
// LINUX: ret ptr @HasGeneric.A
// LINUX-NOT: call void @llvm.trap
// WINDOWS: define weak_odr dso_local void @HasGeneric() comdat
// WINDOWS: call void @__cpu_indicator_init
// WINDOWS: call void @HasGeneric.Z
// WINDOWS-NEXT: ret void
// WINDOWS: call void @HasGeneric.S
// WINDOWS-NEXT: ret void
// WINDOWS: call void @HasGeneric.O
// WINDOWS-NEXT: ret void
// WINDOWS: call void @HasGeneric.A
// WINDOWS-NEXT: ret void
// WINDOWS-NOT: call void @llvm.trap
ATTR(cpu_dispatch(atom, generic, ivybridge, knl))
void HasParams(int i, double d);
// LINUX: define weak_odr ptr @HasParams.resolver()
// LINUX: call void @__cpu_indicator_init
// LINUX: ret ptr @HasParams.Z
// LINUX: ret ptr @HasParams.S
// LINUX: ret ptr @HasParams.O
// LINUX: ret ptr @HasParams.A
// LINUX-NOT: call void @llvm.trap
// WINDOWS: define weak_odr dso_local void @HasParams(i32 %0, double %1) comdat
// WINDOWS: call void @__cpu_indicator_init
// WINDOWS: call void @HasParams.Z(i32 %0, double %1)
// WINDOWS-NEXT: ret void
// WINDOWS: call void @HasParams.S(i32 %0, double %1)
// WINDOWS-NEXT: ret void
// WINDOWS: call void @HasParams.O(i32 %0, double %1)
// WINDOWS-NEXT: ret void
// WINDOWS: call void @HasParams.A(i32 %0, double %1)
// WINDOWS-NEXT: ret void
// WINDOWS-NOT: call void @llvm.trap
ATTR(cpu_dispatch(atom, generic, ivybridge, knl))
int HasParamsAndReturn(int i, double d);
// LINUX: define weak_odr ptr @HasParamsAndReturn.resolver()
// LINUX: call void @__cpu_indicator_init
// LINUX: ret ptr @HasParamsAndReturn.Z
// LINUX: ret ptr @HasParamsAndReturn.S
// LINUX: ret ptr @HasParamsAndReturn.O
// LINUX: ret ptr @HasParamsAndReturn.A
// LINUX-NOT: call void @llvm.trap
// WINDOWS: define weak_odr dso_local i32 @HasParamsAndReturn(i32 %0, double %1) comdat
// WINDOWS: call void @__cpu_indicator_init
// WINDOWS: %[[RET:.+]] = musttail call i32 @HasParamsAndReturn.Z(i32 %0, double %1)
// WINDOWS-NEXT: ret i32 %[[RET]]
// WINDOWS: %[[RET:.+]] = musttail call i32 @HasParamsAndReturn.S(i32 %0, double %1)
// WINDOWS-NEXT: ret i32 %[[RET]]
// WINDOWS: %[[RET:.+]] = musttail call i32 @HasParamsAndReturn.O(i32 %0, double %1)
// WINDOWS-NEXT: ret i32 %[[RET]]
// WINDOWS: %[[RET:.+]] = musttail call i32 @HasParamsAndReturn.A(i32 %0, double %1)
// WINDOWS-NEXT: ret i32 %[[RET]]
// WINDOWS-NOT: call void @llvm.trap
ATTR(cpu_dispatch(atom, generic, pentium))
int GenericAndPentium(int i, double d);
// LINUX: define weak_odr ptr @GenericAndPentium.resolver()
// LINUX: call void @__cpu_indicator_init
// LINUX: ret ptr @GenericAndPentium.O
// LINUX: ret ptr @GenericAndPentium.B
// LINUX-NOT: ret ptr @GenericAndPentium.A
// LINUX-NOT: call void @llvm.trap
// WINDOWS: define weak_odr dso_local i32 @GenericAndPentium(i32 %0, double %1) comdat
// WINDOWS: call void @__cpu_indicator_init
// WINDOWS: %[[RET:.+]] = musttail call i32 @GenericAndPentium.O(i32 %0, double %1)
// WINDOWS-NEXT: ret i32 %[[RET]]
// WINDOWS: %[[RET:.+]] = musttail call i32 @GenericAndPentium.B(i32 %0, double %1)
// WINDOWS-NEXT: ret i32 %[[RET]]
// WINDOWS-NOT: call i32 @GenericAndPentium.A
// WINDOWS-NOT: call void @llvm.trap
ATTR(cpu_dispatch(atom, pentium))
int DispatchFirst(void);
// LINUX: define weak_odr ptr @DispatchFirst.resolver
// LINUX: ret ptr @DispatchFirst.O
// LINUX: ret ptr @DispatchFirst.B
// WINDOWS: define weak_odr dso_local i32 @DispatchFirst() comdat
// WINDOWS: %[[RET:.+]] = musttail call i32 @DispatchFirst.O()
// WINDOWS-NEXT: ret i32 %[[RET]]
// WINDOWS: %[[RET:.+]] = musttail call i32 @DispatchFirst.B()
// WINDOWS-NEXT: ret i32 %[[RET]]
ATTR(cpu_specific(atom))
int DispatchFirst(void) {return 0;}
// LINUX: define{{.*}} i32 @DispatchFirst.O
// LINUX: ret i32 0
// WINDOWS: define dso_local i32 @DispatchFirst.O()
// WINDOWS: ret i32 0
ATTR(cpu_specific(pentium))
int DispatchFirst(void) {return 1;}
// LINUX: define{{.*}} i32 @DispatchFirst.B
// LINUX: ret i32 1
// WINDOWS: define dso_local i32 @DispatchFirst.B
// WINDOWS: ret i32 1
ATTR(cpu_specific(knl))
void OrderDispatchUsageSpecific(void) {}
// CHECK: attributes #[[S]] = {{.*}}"target-features"="+avx,+cmov,+crc32,+cx16,+cx8,+f16c,+fsgsbase,+fxsr,+mmx,+pclmul,+popcnt,+rdrnd,+sahf,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+ssse3,+x87,+xsave,+xsaveopt"
// CHECK-SAME: "tune-cpu"="ivybridge"
// CHECK: attributes #[[K]] = {{.*}}"target-features"="+adx,+aes,+avx,+avx2,+avx512cd,+avx512f,+bmi,+bmi2,+cmov,+crc32,+cx16,+cx8,+evex512,+f16c,+fma,+fsgsbase,+fxsr,+invpcid,+lzcnt,+mmx,+movbe,+pclmul,+popcnt,+prfchw,+rdrnd,+rdseed,+sahf,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+ssse3,+x87,+xsave,+xsaveopt"
// CHECK-SAME: "tune-cpu"="knl"
// CHECK: attributes #[[O]] = {{.*}}"target-features"="+cmov,+cx16,+cx8,+fxsr,+mmx,+movbe,+sahf,+sse,+sse2,+sse3,+ssse3,+x87"
// CHECK-SAME: "tune-cpu"="atom"
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