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| author | Dimitry Andric <dim@FreeBSD.org> | 2018-07-28 10:51:19 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2018-07-28 10:51:19 +0000 |
| commit | eb11fae6d08f479c0799db45860a98af528fa6e7 (patch) | |
| tree | 44d492a50c8c1a7eb8e2d17ea3360ec4d066f042 /test/CodeGen/AArch64/stackguard-internal.ll | |
| parent | b8a2042aa938069e862750553db0e4d82d25822c (diff) | |
Notes
Diffstat (limited to 'test/CodeGen/AArch64/stackguard-internal.ll')
| -rw-r--r-- | test/CodeGen/AArch64/stackguard-internal.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/stackguard-internal.ll b/test/CodeGen/AArch64/stackguard-internal.ll new file mode 100644 index 000000000000..6dcdf1619851 --- /dev/null +++ b/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*) |