TheRock/compiler/amd-llvm/clang/test/CodeGen/AArch64/fmv-unreachable-version.c

// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals --include-generated-funcs
// RUN: %clang_cc1 -triple aarch64-linux-gnu -verify -emit-llvm -o - %s | FileCheck %s

__attribute__((target_version("sve;priority=5"))) int unreachable_versions(void) { return 5; }
// expected-warning@+1 {{function version 'unreachable_versions._MlseMmops' is unreachable; ignoring version}}
__attribute__((target_version("mops+lse;priority=1"))) int unreachable_versions(void) { return 1; }
int foo() { return unreachable_versions(); }
// expected-warning@+1 {{function version 'unreachable_versions._Msve2' is unreachable; ignoring version}}
__attribute__((target_clones("sve2;priority=4", "aes+sve2;priority=3", "lse;priority=2", "default"))) int unreachable_versions(void) { return 0; }
// expected-warning@-1 {{function version 'unreachable_versions._MaesMsve2' is unreachable; ignoring version}}

//.
// CHECK: @__aarch64_cpu_features = external dso_local global { i64 }
// CHECK: @unreachable_versions = weak_odr ifunc i32 (), ptr @unreachable_versions.resolver
//.
// CHECK: Function Attrs: noinline nounwind optnone vscale_range(1,16)
// CHECK-LABEL: define {{[^@]+}}@unreachable_versions._Msve
// CHECK-SAME: () #[[ATTR0:[0-9]+]] {
// CHECK-NEXT:  entry:
// CHECK-NEXT:    ret i32 5
//
//
// CHECK: Function Attrs: noinline nounwind optnone
// CHECK-LABEL: define {{[^@]+}}@foo
// CHECK-SAME: () #[[ATTR1:[0-9]+]] {
// CHECK-NEXT:  entry:
// CHECK-NEXT:    [[CALL:%.*]] = call i32 @unreachable_versions()
// CHECK-NEXT:    ret i32 [[CALL]]
//
//
// CHECK: Function Attrs: noinline nounwind optnone vscale_range(1,16)
// CHECK-LABEL: define {{[^@]+}}@unreachable_versions._Mlse
// CHECK-SAME: () #[[ATTR2:[0-9]+]] {
// CHECK-NEXT:  entry:
// CHECK-NEXT:    ret i32 0
//
//
// CHECK: Function Attrs: noinline nounwind optnone vscale_range(1,16)
// CHECK-LABEL: define {{[^@]+}}@unreachable_versions.default
// CHECK-SAME: () #[[ATTR3:[0-9]+]] {
// CHECK-NEXT:  entry:
// CHECK-NEXT:    ret i32 0
//
//
// CHECK: Function Attrs: disable_sanitizer_instrumentation
// CHECK-LABEL: define {{[^@]+}}@unreachable_versions.resolver
// CHECK-SAME: () #[[ATTR4:[0-9]+]] comdat {
// CHECK-NEXT:  resolver_entry:
// CHECK-NEXT:    call void @__init_cpu_features_resolver()
// CHECK-NEXT:    [[TMP0:%.*]] = load i64, ptr @__aarch64_cpu_features, align 8
// CHECK-NEXT:    [[TMP1:%.*]] = and i64 [[TMP0]], 1073807616
// CHECK-NEXT:    [[TMP2:%.*]] = icmp eq i64 [[TMP1]], 1073807616
// CHECK-NEXT:    [[TMP3:%.*]] = and i1 true, [[TMP2]]
// CHECK-NEXT:    br i1 [[TMP3]], label [[RESOLVER_RETURN:%.*]], label [[RESOLVER_ELSE:%.*]]
// CHECK:       resolver_return:
// CHECK-NEXT:    ret ptr @unreachable_versions._Msve
// CHECK:       resolver_else:
// CHECK-NEXT:    [[TMP4:%.*]] = load i64, ptr @__aarch64_cpu_features, align 8
// CHECK-NEXT:    [[TMP5:%.*]] = and i64 [[TMP4]], 69793284352
// CHECK-NEXT:    [[TMP6:%.*]] = icmp eq i64 [[TMP5]], 69793284352
// CHECK-NEXT:    [[TMP7:%.*]] = and i1 true, [[TMP6]]
// CHECK-NEXT:    [[TMP8:%.*]] = load i64, ptr @__aarch64_cpu_features, align 8
// CHECK-NEXT:    [[TMP9:%.*]] = and i64 [[TMP8]], 69793317632
// CHECK-NEXT:    [[TMP10:%.*]] = icmp eq i64 [[TMP9]], 69793317632
// CHECK-NEXT:    [[TMP11:%.*]] = and i1 true, [[TMP10]]
// CHECK-NEXT:    [[TMP12:%.*]] = load i64, ptr @__aarch64_cpu_features, align 8
// CHECK-NEXT:    [[TMP13:%.*]] = and i64 [[TMP12]], 128
// CHECK-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[TMP13]], 128
// CHECK-NEXT:    [[TMP15:%.*]] = and i1 true, [[TMP14]]
// CHECK-NEXT:    br i1 [[TMP15]], label [[RESOLVER_RETURN1:%.*]], label [[RESOLVER_ELSE2:%.*]]
// CHECK:       resolver_return1:
// CHECK-NEXT:    ret ptr @unreachable_versions._Mlse
// CHECK:       resolver_else2:
// CHECK-NEXT:    [[TMP16:%.*]] = load i64, ptr @__aarch64_cpu_features, align 8
// CHECK-NEXT:    [[TMP17:%.*]] = and i64 [[TMP16]], 576460752303423616
// CHECK-NEXT:    [[TMP18:%.*]] = icmp eq i64 [[TMP17]], 576460752303423616
// CHECK-NEXT:    [[TMP19:%.*]] = and i1 true, [[TMP18]]
// CHECK-NEXT:    ret ptr @unreachable_versions.default
//
//.
// CHECK: attributes #[[ATTR0]] = { noinline nounwind optnone vscale_range(1,16) "fmv-features"="P0,P2,sve" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+fp-armv8,+fullfp16,+sve" }
// CHECK: attributes #[[ATTR1]] = { noinline nounwind optnone "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
// CHECK: attributes #[[ATTR2]] = { noinline nounwind optnone vscale_range(1,16) "fmv-features"="P1,lse" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+lse" }
// CHECK: attributes #[[ATTR3]] = { noinline nounwind optnone vscale_range(1,16) "fmv-features" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
// CHECK: attributes #[[ATTR4]] = { disable_sanitizer_instrumentation }
//.
// CHECK: [[META0:![0-9]+]] = !{!"{{.*}}clang version {{.*}}"}
//.