It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/CBackend/2007-01-17-StackSaveNRestore.ll b/test/CodeGen/CBackend/2007-01-17-StackSaveNRestore.ll
new file mode 100644
index 0000000..8fe06b7
--- /dev/null
+++ b/test/CodeGen/CBackend/2007-01-17-StackSaveNRestore.ll
@@ -0,0 +1,12 @@
+; RUN: llvm-as < %s | llc -march=c | grep __builtin_stack_save
+; RUN: llvm-as < %s | llc -march=c | grep __builtin_stack_restore
+; PR1028
+
+declare i8* @llvm.stacksave()
+declare void @llvm.stackrestore(i8*)
+
+define i8* @test() {
+ %s = call i8* @llvm.stacksave()
+ call void @llvm.stackrestore(i8* %s)
+ ret i8* %s
+}