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-rw-r--r--test/CodeGen/Thumb/vargs.ll36
1 files changed, 36 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb/vargs.ll b/test/CodeGen/Thumb/vargs.ll
new file mode 100644
index 0000000..a18010f
--- /dev/null
+++ b/test/CodeGen/Thumb/vargs.ll
@@ -0,0 +1,36 @@
+; RUN: llvm-as < %s | llc -march=thumb
+; RUN: llvm-as < %s | llc -mtriple=thumb-linux | grep pop | count 1
+; RUN: llvm-as < %s | llc -mtriple=thumb-darwin | grep pop | count 2
+
+@str = internal constant [4 x i8] c"%d\0A\00" ; <[4 x i8]*> [#uses=1]
+
+define void @f(i32 %a, ...) {
+entry:
+ %va = alloca i8*, align 4 ; <i8**> [#uses=4]
+ %va.upgrd.1 = bitcast i8** %va to i8* ; <i8*> [#uses=1]
+ call void @llvm.va_start( i8* %va.upgrd.1 )
+ br label %bb
+
+bb: ; preds = %bb, %entry
+ %a_addr.0 = phi i32 [ %a, %entry ], [ %tmp5, %bb ] ; <i32> [#uses=2]
+ %tmp = volatile load i8** %va ; <i8*> [#uses=2]
+ %tmp2 = getelementptr i8* %tmp, i32 4 ; <i8*> [#uses=1]
+ volatile store i8* %tmp2, i8** %va
+ %tmp5 = add i32 %a_addr.0, -1 ; <i32> [#uses=1]
+ %tmp.upgrd.2 = icmp eq i32 %a_addr.0, 1 ; <i1> [#uses=1]
+ br i1 %tmp.upgrd.2, label %bb7, label %bb
+
+bb7: ; preds = %bb
+ %tmp3 = bitcast i8* %tmp to i32* ; <i32*> [#uses=1]
+ %tmp.upgrd.3 = load i32* %tmp3 ; <i32> [#uses=1]
+ %tmp10 = call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @str, i32 0, i64 0), i32 %tmp.upgrd.3 ) ; <i32> [#uses=0]
+ %va.upgrd.4 = bitcast i8** %va to i8* ; <i8*> [#uses=1]
+ call void @llvm.va_end( i8* %va.upgrd.4 )
+ ret void
+}
+
+declare void @llvm.va_start(i8*)
+
+declare i32 @printf(i8*, ...)
+
+declare void @llvm.va_end(i8*)