X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=test%2FCodeGen%2FXCore%2Fbigstructret.ll;h=567b3720919595b5f0000ab8faaf3aac4704da65;hb=813f44a29fd0fd140127023222d0633e23783bcc;hp=877c57140a1dbe0c7ea3663707bb36058315f422;hpb=8b2b8a18354546d534b72f912153a3252ab4b857;p=oota-llvm.git

diff --git a/test/CodeGen/XCore/bigstructret.ll b/test/CodeGen/XCore/bigstructret.ll
index 877c57140a1..567b3720919 100644
--- a/test/CodeGen/XCore/bigstructret.ll
+++ b/test/CodeGen/XCore/bigstructret.ll
@@ -3,8 +3,8 @@
 %0 = type { i32, i32, i32, i32 }
 %1 = type { i32, i32, i32, i32, i32 }
 
-; Structs of 4 words can be returned in registers
-define internal fastcc %0 @ReturnBigStruct() nounwind readnone {
+; Structs of 4 words are returned in registers
+define internal %0 @ReturnBigStruct() nounwind readnone {
 entry:
   %0 = insertvalue %0 zeroinitializer, i32 12, 0
   %1 = insertvalue %0 %0, i32 24, 1
@@ -19,8 +19,39 @@ entry:
 ; CHECK: ldc r3, 24601
 ; CHECK: retsp 0
 
-; Structs bigger than 4 words are returned via a hidden hidden sret-parameter
-define internal fastcc %1 @ReturnBigStruct2() nounwind readnone {
+; Structs of more than 4 words are partially returned in memory so long as the
+; function is not variadic.
+define { i32, i32, i32, i32, i32} @f(i32, i32, i32, i32, i32) nounwind readnone {
+; CHECK-LABEL: f:
+; CHECK: ldc [[REGISTER:r[0-9]+]], 5
+; CHECK-NEXT: stw [[REGISTER]], sp[2]
+; CHECK-NEXT: retsp 0
+body:
+  ret { i32, i32, i32, i32, i32} { i32 undef, i32 undef, i32 undef, i32 undef, i32 5}
+}
+
+@x = external global i32
+@y = external global i32
+
+; Check we call a function returning more than 4 words correctly.
+define i32 @g() nounwind {
+; CHECK-LABEL: g:
+; CHECK: entsp 3
+; CHECK: ldc [[REGISTER:r[0-9]+]], 0
+; CHECK: stw [[REGISTER]], sp[1]
+; CHECK: bl f
+; CHECK-NEXT: ldw r0, sp[2]
+; CHECK-NEXT: retsp 3
+;
+body:
+  %0 = call { i32, i32, i32, i32, i32 } @f(i32 0, i32 0, i32 0, i32 0, i32 0)
+  %1 = extractvalue { i32, i32, i32, i32, i32 } %0, 4
+  ret i32 %1
+}
+
+; Variadic functions return structs bigger than 4 words via a hidden
+; sret-parameter
+define internal %1 @ReturnBigStruct2(i32 %dummy, ...) nounwind readnone {
 entry:
   %0 = insertvalue %1 zeroinitializer, i32 12, 0
   %1 = insertvalue %1 %0, i32 24, 1