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author | Stephen Hines <srhines@google.com> | 2014-12-01 14:51:49 -0800 |
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committer | Stephen Hines <srhines@google.com> | 2014-12-02 16:08:10 -0800 |
commit | 37ed9c199ca639565f6ce88105f9e39e898d82d0 (patch) | |
tree | 8fb36d3910e3ee4c4e1b7422f4f017108efc52f5 /test/CodeGen/AArch64/stack-guard-remat-bitcast.ll | |
parent | d2327b22152ced7bc46dc629fc908959e8a52d03 (diff) | |
download | external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.zip external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.tar.gz external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.tar.bz2 |
Update aosp/master LLVM for rebase to r222494.
Change-Id: Ic787f5e0124df789bd26f3f24680f45e678eef2d
Diffstat (limited to 'test/CodeGen/AArch64/stack-guard-remat-bitcast.ll')
-rw-r--r-- | test/CodeGen/AArch64/stack-guard-remat-bitcast.ll | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/stack-guard-remat-bitcast.ll b/test/CodeGen/AArch64/stack-guard-remat-bitcast.ll new file mode 100644 index 0000000..bedbf5f --- /dev/null +++ b/test/CodeGen/AArch64/stack-guard-remat-bitcast.ll @@ -0,0 +1,26 @@ +; RUN: llc < %s -mtriple=arm64-apple-ios -relocation-model=pic | FileCheck %s + +@__stack_chk_guard = external global i64* + +; PR20558 + +; CHECK: adrp [[R0:x[0-9]+]], ___stack_chk_guard@GOTPAGE +; CHECK: ldr [[R1:x[0-9]+]], {{\[}}[[R0]], ___stack_chk_guard@GOTPAGEOFF{{\]}} +; CHECK: ldr [[R2:x[0-9]+]], {{\[}}[[R1]]{{\]}} +; CHECK: stur [[R2]], {{\[}}x29, [[SLOT0:[0-9#\-]+]]{{\]}} +; CHECK: ldur [[R3:x[0-9]+]], {{\[}}x29, [[SLOT0]]{{\]}} +; CHECK: sub [[R4:x[0-9]+]], [[R2]], [[R3]] +; CHECK: cbnz [[R4]], LBB + +define i32 @test_stack_guard_remat2() { +entry: + %StackGuardSlot = alloca i8* + %StackGuard = load i8** bitcast (i64** @__stack_chk_guard to i8**) + call void @llvm.stackprotector(i8* %StackGuard, i8** %StackGuardSlot) + %container = alloca [32 x i8], align 1 + call void @llvm.stackprotectorcheck(i8** bitcast (i64** @__stack_chk_guard to i8**)) + ret i32 -1 +} + +declare void @llvm.stackprotector(i8*, i8**) +declare void @llvm.stackprotectorcheck(i8**) |