Add a triple to switch.ll test.

[oota-llvm.git] / test / CodeGen / Thumb / vargs.ll

diff --git a/test/CodeGen/Thumb/vargs.ll b/test/CodeGen/Thumb/vargs.ll
index 4078b01ba30c9dda37e644524960ff023aca4a22..713742910b5492866fc518da51d5ffbc7135c3a9 100644 (file)
--- a/test/CodeGen/Thumb/vargs.ll
+++ b/test/CodeGen/Thumb/vargs.ll
@@ -6,6 +6,10 @@
 
 define void @f(i32 %a, ...) {
 entry:
+; Check that space is reserved above the pushed lr for variadic argument
+; registers to be stored in.
+; CHECK: sub sp, #[[IMM:[0-9]+]]
+; CHECK: push
         %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 )
@@ -13,8 +17,8 @@ entry:
 
 bb:             ; preds = %bb, %entry
         %a_addr.0 = phi i32 [ %a, %entry ], [ %tmp5, %bb ]              ; <i32> [#uses=2]
-        %tmp = load volatile i8** %va           ; <i8*> [#uses=2]
-        %tmp2 = getelementptr i8* %tmp, i32 4           ; <i8*> [#uses=1]
+        %tmp = load volatile i8*, i8** %va           ; <i8*> [#uses=2]
+        %tmp2 = getelementptr i8, i8* %tmp, i32 4           ; <i8*> [#uses=1]
         store volatile 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]
@@ -22,11 +26,18 @@ bb:             ; preds = %bb, %entry
 
 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]
+        %tmp.upgrd.3 = load i32, i32* %tmp3          ; <i32> [#uses=1]
+        %tmp10 = call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8], [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
+
+; The return sequence should pop the lr to r3, recover the stack space used to
+; store variadic argument registers, then return via r3. Possibly there is a pop
+; before this, but only if the function happened to use callee-saved registers.
+; CHECK: pop {r3}
+; CHECK: add sp, #[[IMM]]
+; CHECK: bx r3
 }
 
 declare void @llvm.va_start(i8*)
@@ -34,8 +45,3 @@ declare void @llvm.va_start(i8*)
 declare i32 @printf(i8*, ...)
 
 declare void @llvm.va_end(i8*)
-
-; CHECK: pop
-; CHECK: pop
-; CHECK-NOT: pop
-