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

1 files changed, 36 insertions, 0 deletions

diff --git a/test/CodeGen/ARM/vargs2.ll b/test/CodeGen/ARM/vargs2.ll
new file mode 100644
index 0000000..a58516f
--- /dev/null
+++ b/test/CodeGen/ARM/vargs2.ll
@@ -0,0 +1,36 @@
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=thumb
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=thumb | \
+; RUN:   grep pop | wc -l | grep 2
+
+%str = internal constant [4 x sbyte] c"%d\0A\00"		; <[4 x sbyte]*> [#uses=1]
+
+implementation   ; Functions:
+
+void %f(int %a, ...) {
+entry:
+	%va = alloca sbyte*, align 4		; <sbyte**> [#uses=4]
+	call void %llvm.va_start( sbyte** %va )
+	br label %bb
+
+bb:		; preds = %bb, %entry
+	%a_addr.0 = phi int [ %a, %entry ], [ %tmp5, %bb ]		; <int> [#uses=2]
+	%tmp = volatile load sbyte** %va		; <sbyte*> [#uses=2]
+	%tmp2 = getelementptr sbyte* %tmp, int 4		; <sbyte*> [#uses=1]
+	volatile store sbyte* %tmp2, sbyte** %va
+	%tmp5 = add int %a_addr.0, -1		; <int> [#uses=1]
+	%tmp = seteq int %a_addr.0, 1		; <bool> [#uses=1]
+	br bool %tmp, label %bb7, label %bb
+
+bb7:		; preds = %bb
+	%tmp3 = cast sbyte* %tmp to int*		; <int*> [#uses=1]
+	%tmp = load int* %tmp3		; <int> [#uses=1]
+	%tmp10 = call int (sbyte*, ...)* %printf( sbyte* getelementptr ([4 x sbyte]* %str, int 0, uint 0), int %tmp )		; <int> [#uses=0]
+	call void %llvm.va_end( sbyte** %va )
+	ret void
+}
+
+declare void %llvm.va_start(sbyte**)
+
+declare int %printf(sbyte*, ...)
+
+declare void %llvm.va_end(sbyte**)