summaryrefslogtreecommitdiffstats
path: root/llvm/test/CodeGen/X86
diff options
context:
space:
mode:
Diffstat (limited to 'llvm/test/CodeGen/X86')
-rw-r--r--llvm/test/CodeGen/X86/stack-protector-remarks.ll91
1 files changed, 91 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/stack-protector-remarks.ll b/llvm/test/CodeGen/X86/stack-protector-remarks.ll
new file mode 100644
index 00000000000..a86976ddb32
--- /dev/null
+++ b/llvm/test/CodeGen/X86/stack-protector-remarks.ll
@@ -0,0 +1,91 @@
+; RUN: llc %s -pass-remarks=stack-protector -o /dev/null 2>&1 | FileCheck %s
+; CHECK-NOT: nossp
+; CHECK: function attribute_ssp
+; CHECK-SAME: a function attribute or command-line switch
+; CHECK-NOT: alloca_fixed_small_nossp
+; CHECK: function alloca_fixed_small_ssp
+; CHECK-SAME: a call to alloca or use of a variable length array
+; CHECK: function alloca_fixed_large_ssp
+; CHECK-SAME: a call to alloca or use of a variable length array
+; CHECK: function alloca_variable_ssp
+; CHECK-SAME: a call to alloca or use of a variable length array
+; CHECK: function buffer_ssp
+; CHECK-SAME: a stack allocated buffer or struct containing a buffer
+; CHECK: function struct_ssp
+; CHECK-SAME: a stack allocated buffer or struct containing a buffer
+; CHECK: function address_ssp
+; CHECK-SAME: the address of a local variable being taken
+; CHECK: function multiple_ssp
+; CHECK-SAME: a function attribute or command-line switch
+; CHECK: function multiple_ssp
+; CHECK-SAME: a stack allocated buffer or struct containing a buffer
+; CHECK: function multiple_ssp
+; CHECK-SAME: a stack allocated buffer or struct containing a buffer
+; CHECK: function multiple_ssp
+; CHECK-SAME: the address of a local variable being taken
+; CHECK: function multiple_ssp
+; CHECK-SAME: a call to alloca or use of a variable length array
+
+; Check that no remark is emitted when the switch is not specified.
+; RUN: llc %s -o /dev/null 2>&1 | FileCheck %s -check-prefix=NOREMARK -allow-empty
+; NOREMARK-NOT: ssp
+
+define void @nossp() ssp {
+ ret void
+}
+
+define void @attribute_ssp() sspreq {
+ ret void
+}
+
+define void @alloca_fixed_small_nossp() ssp {
+ %1 = alloca i8, i64 2, align 16
+ ret void
+}
+
+define void @alloca_fixed_small_ssp() sspstrong {
+ %1 = alloca i8, i64 2, align 16
+ ret void
+}
+
+define void @alloca_fixed_large_ssp() ssp {
+ %1 = alloca i8, i64 64, align 16
+ ret void
+}
+
+define void @alloca_variable_ssp(i64 %x) ssp {
+ %1 = alloca i8, i64 %x, align 16
+ ret void
+}
+
+define void @buffer_ssp() sspstrong {
+ %x = alloca [64 x i32], align 16
+ ret void
+}
+
+%struct.X = type { [64 x i32] }
+define void @struct_ssp() sspstrong {
+ %x = alloca %struct.X, align 4
+ ret void
+}
+
+define void @address_ssp() sspstrong {
+entry:
+ %x = alloca i32, align 4
+ %y = alloca i32*, align 8
+ store i32 32, i32* %x, align 4
+ store i32* %x, i32** %y, align 8
+ ret void
+}
+
+define void @multiple_ssp() sspreq {
+entry:
+ %x = alloca %struct.X, align 4
+ %y = alloca [64 x i32], align 16
+ %a = alloca i32, align 4
+ %b = alloca i32*, align 8
+ %0 = alloca i8, i64 2, align 16
+ store i32 32, i32* %a, align 4
+ store i32* %a, i32** %b, align 8
+ ret void
+}
OpenPOWER on IntegriCloud