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/Transforms/SimplifyLibCalls/Printf.ll b/test/Transforms/SimplifyLibCalls/Printf.ll
new file mode 100644
index 0000000..c892f03
--- /dev/null
+++ b/test/Transforms/SimplifyLibCalls/Printf.ll
@@ -0,0 +1,21 @@
+; RUN: llvm-as < %s | opt -simplify-libcalls | llvm-dis | grep putchar
+; RUN: llvm-as < %s | opt -simplify-libcalls | llvm-dis | \
+; RUN: not grep {call.*printf}
+
+@str = internal constant [13 x i8] c"hello world\0A\00" ; <[13 x i8]*> [#uses=1]
+@str1 = internal constant [2 x i8] c"h\00" ; <[2 x i8]*> [#uses=1]
+
+define void @foo() {
+entry:
+ %tmp1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([13 x i8]* @str, i32 0, i32 0) ) ; <i32> [#uses=0]
+ ret void
+}
+
+declare i32 @printf(i8*, ...)
+
+define void @bar() {
+entry:
+ %tmp1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([2 x i8]* @str1, i32 0, i32 0) ) ; <i32> [#uses=0]
+ ret void
+}
+