1 files changed, 118 insertions, 0 deletions
diff --git a/llvm/test/Analysis/StackSafetyAnalysis/Inputs/ipa.ll b/llvm/test/Analysis/StackSafetyAnalysis/Inputs/ipa.ll
new file mode 100644
index 00000000000..fb789345692
--- /dev/null
+++ b/llvm/test/Analysis/StackSafetyAnalysis/Inputs/ipa.ll
@@ -0,0 +1,118 @@
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+define dso_local void @Write1(i8* %p) {
+entry:
+  store i8 0, i8* %p, align 1
+  ret void
+}
+
+define dso_local void @Write4(i8* %p) {
+entry:
+  %0 = bitcast i8* %p to i32*
+  store i32 0, i32* %0, align 1
+  ret void
+}
+
+define dso_local void @Write4_2(i8* %p, i8* %q) {
+entry:
+  %0 = bitcast i8* %p to i32*
+  store i32 0, i32* %0, align 1
+  %1 = bitcast i8* %q to i32*
+  store i32 0, i32* %1, align 1
+  ret void
+}
+
+define dso_local void @Write8(i8* %p) {
+entry:
+  %0 = bitcast i8* %p to i64*
+  store i64 0, i64* %0, align 1
+  ret void
+}
+
+define dso_local i8* @WriteAndReturn8(i8* %p) {
+entry:
+  store i8 0, i8* %p, align 1
+  ret i8* %p
+}
+
+declare dso_local void @ExternalCall(i8* %p)
+
+define dso_preemptable void @PreemptableWrite1(i8* %p) {
+entry:
+  store i8 0, i8* %p, align 1
+  ret void
+}
+
+define linkonce dso_local void @InterposableWrite1(i8* %p) {
+entry:
+  store i8 0, i8* %p, align 1
+  ret void
+}
+
+define dso_local i8* @ReturnDependent(i8* %p) {
+entry:
+  %p2 = getelementptr i8, i8* %p, i64 2
+  ret i8* %p2
+}
+
+; access range [2, 6)
+define dso_local void @Rec0(i8* %p) {
+entry:
+  %p1 = getelementptr i8, i8* %p, i64 2
+  call void @Write4(i8* %p1)
+  ret void
+}
+
+; access range [3, 7)
+define dso_local void @Rec1(i8* %p) {
+entry:
+  %p1 = getelementptr i8, i8* %p, i64 1
+  call void @Rec0(i8* %p1)
+  ret void
+}
+
+; access range [-2, 2)
+define dso_local void @Rec2(i8* %p) {
+entry:
+  %p1 = getelementptr i8, i8* %p, i64 -5
+  call void @Rec1(i8* %p1)
+  ret void
+}
+
+; Recursive function that passes %acc unchanged => access range [0, 4).
+define dso_local void @RecursiveNoOffset(i32* %p, i32 %size, i32* %acc) {
+entry:
+  %cmp = icmp eq i32 %size, 0
+  br i1 %cmp, label %return, label %if.end
+
+if.end:
+  %0 = load i32, i32* %p, align 4
+  %1 = load i32, i32* %acc, align 4
+  %add = add nsw i32 %1, %0
+  store i32 %add, i32* %acc, align 4
+  %add.ptr = getelementptr inbounds i32, i32* %p, i64 1
+  %sub = add nsw i32 %size, -1
+  tail call void @RecursiveNoOffset(i32* %add.ptr, i32 %sub, i32* %acc)
+  ret void
+
+return:
+  ret void
+}
+
+; Recursive function that advances %acc on each iteration => access range unlimited.
+define dso_local void @RecursiveWithOffset(i32 %size, i32* %acc) {
+entry:
+  %cmp = icmp eq i32 %size, 0
+  br i1 %cmp, label %return, label %if.end
+
+if.end:
+  store i32 0, i32* %acc, align 4
+  %acc2 = getelementptr inbounds i32, i32* %acc, i64 1
+  %sub = add nsw i32 %size, -1
+  tail call void @RecursiveWithOffset(i32 %sub, i32* %acc2)
+  ret void
+
+return:
+  ret void
+}