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/ARM/vargs_align.ll b/test/CodeGen/ARM/vargs_align.ll
new file mode 100644
index 0000000..8d49e19
--- /dev/null
+++ b/test/CodeGen/ARM/vargs_align.ll
@@ -0,0 +1,21 @@
+; RUN: llvm-as < %s | llc -march=arm -mtriple=arm-linux-gnueabi | \
+; RUN: grep {add sp, sp, #16} | wc -l | grep 1
+; RUN: llvm-as < %s | llc -march=arm -mtriple=arm-linux-gnu | \
+; RUN: grep {add sp, sp, #12} | wc -l | grep 2
+
+define i32 @f(i32 %a, ...) {
+entry:
+ %a_addr = alloca i32 ; <i32*> [#uses=1]
+ %retval = alloca i32, align 4 ; <i32*> [#uses=2]
+ %tmp = alloca i32, align 4 ; <i32*> [#uses=2]
+ "alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
+ store i32 %a, i32* %a_addr
+ store i32 0, i32* %tmp
+ %tmp1 = load i32* %tmp ; <i32> [#uses=1]
+ store i32 %tmp1, i32* %retval
+ br label %return
+
+return: ; preds = %entry
+ %retval2 = load i32* %retval ; <i32> [#uses=1]
+ ret i32 %retval2
+}