diff options
Diffstat (limited to 'llvm/test/CodeGen/AArch64/stackguard-internal.ll')
| -rw-r--r-- | llvm/test/CodeGen/AArch64/stackguard-internal.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AArch64/stackguard-internal.ll b/llvm/test/CodeGen/AArch64/stackguard-internal.ll new file mode 100644 index 00000000000..6dcdf161985 --- /dev/null +++ b/llvm/test/CodeGen/AArch64/stackguard-internal.ll @@ -0,0 +1,21 @@ +; RUN: llc -O3 %s -o - | FileCheck %s +target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" +target triple = "aarch64-linux-gnu" + +; Make sure we correctly lower stack guards even if __stack_chk_guard +; is an alias. (The alias is created by GlobalMerge.) +; CHECK: adrp {{.*}}, __stack_chk_guard +; CHECK: ldr {{.*}}, [{{.*}}, :lo12:__stack_chk_guard] +; CHECK: .set __stack_chk_guard, .L_MergedGlobals+4 + +@__stack_chk_guard = internal global [8 x i32] zeroinitializer, align 4 +@x = internal global i32 0, align 4 + +define i32 @b() nounwind sspstrong { +entry: + %z = alloca [10 x i32], align 4 + %arraydecay = getelementptr inbounds [10 x i32], [10 x i32]* %z, i64 0, i64 0 + %call = call i32 @a(i32* getelementptr inbounds ([8 x i32], [8 x i32]* @__stack_chk_guard, i64 0, i64 0), i32* nonnull @x, i32* nonnull %arraydecay) #3 + ret i32 %call +} +declare i32 @a(i32*, i32*, i32*) |
