44b33f5d3b
ifunc support for Windows on AArch64 needs AArch64 support in the backend so restrict the test to it's availability.
68 lines
2.0 KiB
C
68 lines
2.0 KiB
C
// RUN: %clang_cc1 -triple aarch64-pc-windows-msvc -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple aarch64-pc-windows-msvc -O2 -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple aarch64-pc-windows-msvc -fsanitize=thread -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN
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// RUN: %clang_cc1 -triple aarch64-pc-windows-msvc -fsanitize=address -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN
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// REQUIRES: aarch64-registered-target
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int foo(int) __attribute__ ((ifunc("foo_ifunc")));
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static int f1(int i) {
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return i + 1;
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}
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static int f2(int i) {
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return i + 2;
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}
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typedef int (*foo_t)(int);
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volatile int global;
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static foo_t foo_ifunc(void) {
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return global ? f1 : f2;
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}
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int bar(void) {
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return foo(1);
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}
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extern void goo(void);
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void bar2(void) {
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goo();
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}
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extern void goo(void) __attribute__ ((ifunc("goo_ifunc")));
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void* goo_ifunc(void) {
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return 0;
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}
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/// The ifunc is emitted after its resolver.
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void *hoo_ifunc(void) { return 0; }
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extern void hoo(int) __attribute__ ((ifunc("hoo_ifunc")));
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/// ifunc on Windows is lowered to global pointers and an indirect call.
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// CHECK: @global = dso_local global i32 0, align 4
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// CHECK: {{.*}} = internal{{.*}}global{{.*}}poison, align 8
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/// Register the constructor for initialisation.
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// CHECK: @llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 10, ptr @{{.*}}, ptr null }]
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// CHECK-LABEL: @bar()
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// CHECK %0 = load ptr, ptr @0, align 8
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// CHECK %call = call i32 %0(i32 noundef 1)
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// CHECK-LABEL: @bar2()
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// CHECK %0 = load ptr, ptr getelementptr inbounds ([3 x ptr], ptr @0, i32 0, i32 1), align 8
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// CHECK call void %0()
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// CHECK: define internal void @{{.*}}()
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// SAN: define {{(dso_local )?}}noalias {{(noundef )?}}ptr @goo_ifunc() {{(local_unnamed_addr )?}}
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// SAN: define {{(dso_local )?}}noalias {{(noundef )?}}ptr @hoo_ifunc() {{(local_unnamed_addr )?}}
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// SAN: define internal {{(fastcc )?}}{{(noundef )?}}nonnull ptr @foo_ifunc() {{(unnamed_addr )?}}
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