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/Feature/paramattrs.ll b/test/Feature/paramattrs.ll
new file mode 100644
index 0000000..01dc2fa
--- /dev/null
+++ b/test/Feature/paramattrs.ll
@@ -0,0 +1,22 @@
+; RUN: llvm-as < %s | llvm-dis > %t1.ll
+; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
+; RUN: diff %t1.ll %t2.ll
+
+%ZFunTy = type i32(i8 zext)
+%SFunTy = type i32(i8 sext)
+
+declare i16 @"test"(i16 sext %arg) sext 
+declare i8 @"test2" (i16 zext %a2) zext 
+
+declare i32 @"test3"(i32* noalias %p)
+
+declare void @exit(i32) noreturn nounwind
+
+define i32 @main(i32 %argc, i8 **%argv) nounwind inreg {
+    %val = trunc i32 %argc to i16
+    %res1 = call i16 (i16 sext) sext *@test(i16 %val)
+    %two = add i16 %res1, %res1
+    %res2 = call i8 @test2(i16 %two zext) zext 
+    %retVal = sext i16 %two to i32
+    ret i32 %retVal
+}