Resolve bug 2947: vararg-marked functions must spill registers R3-R79 to stack
so that va_start/va_arg/et.al. will walk arguments correctly for Cell SPU.
N.B.: Because neither clang nor llvm-gcc-4.2 can be built for CellSPU, this is
still unexorcised code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58415 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/CellSPU/call.ll b/test/CodeGen/CellSPU/call.ll
index c69aebb..de6ed6b 100644
--- a/test/CodeGen/CellSPU/call.ll
+++ b/test/CodeGen/CellSPU/call.ll
@@ -1,6 +1,7 @@
; RUN: llvm-as -o - %s | llc -march=cellspu > %t1.s
; RUN: grep brsl %t1.s | count 1
; RUN: grep brasl %t1.s | count 1
+; RUN: grep stqd %t1.s | count 81
target datalayout = "E-p:32:32:128-f64:64:128-f32:32:128-i64:32:128-i32:32:128-i16:16:128-i8:8:128-i1:8:128-a0:0:128-v128:128:128-s0:128:128"
target triple = "spu"
@@ -18,3 +19,10 @@
entry:
ret i32 0
}
+
+; vararg call: ensure that all caller-saved registers are spilled to the
+; stack:
+define i32 @stub_2(...) {
+entry:
+ ret i32 0
+}