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Diffstat (limited to 'test/Transforms/SafeStack/constant-geps.ll')
| -rw-r--r-- | test/Transforms/SafeStack/constant-geps.ll | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/Transforms/SafeStack/constant-geps.ll b/test/Transforms/SafeStack/constant-geps.ll new file mode 100644 index 000000000000..8a6f7549bb4e --- /dev/null +++ b/test/Transforms/SafeStack/constant-geps.ll @@ -0,0 +1,28 @@ +; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s +; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s + +%struct.deep = type { %union.anon } +%union.anon = type { %struct.anon } +%struct.anon = type { %struct.anon.0 } +%struct.anon.0 = type { %union.anon.1 } +%union.anon.1 = type { [2 x i8] } + +@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1 + +; [2 x i8] nested in several layers of structs and unions +; safestack attribute +; Requires no protector. +; CHECK-LABEL: @foo( +define signext i8 @foo() nounwind uwtable safestack { +entry: + ; CHECK-NOT: __safestack_unsafe_stack_ptr + %x = alloca %struct.deep, align 1 + %b = getelementptr inbounds %struct.deep, %struct.deep* %x, i32 0, i32 0 + %c = bitcast %union.anon* %b to %struct.anon* + %d = getelementptr inbounds %struct.anon, %struct.anon* %c, i32 0, i32 0 + %e = getelementptr inbounds %struct.anon.0, %struct.anon.0* %d, i32 0, i32 0 + %array = bitcast %union.anon.1* %e to [2 x i8]* + %arrayidx = getelementptr inbounds [2 x i8], [2 x i8]* %array, i32 0, i64 0 + %0 = load i8, i8* %arrayidx, align 1 + ret i8 %0 +} |