Generate an error message instead of asserting or segfaulting when we can't

handle indirect register inputs.
rdar://13322011

llvm-svn: 176367

1 files changed, 14 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/ARM/indirect-reg-input.ll b/llvm/test/CodeGen/ARM/indirect-reg-input.ll
new file mode 100644
index 00000000000..86728fa6193
--- /dev/null
+++ b/llvm/test/CodeGen/ARM/indirect-reg-input.ll
@@ -0,0 +1,14 @@
+; RUN: llc < %s -march=arm -mcpu=cortex-a8 2>&1 | FileCheck %s
+
+; Check for error message:
+; CHECK: error: inline asm not supported yet: don't know how to handle tied indirect register inputs
+
+%struct.my_stack = type { %struct.myjmp_buf }
+%struct.myjmp_buf = type { [6 x i32] }
+
+define void @switch_to_stack(%struct.my_stack* %stack) nounwind {
+entry:
+  %regs = getelementptr inbounds %struct.my_stack* %stack, i32 0, i32 0
+  tail call void asm "\0A", "=*r,*0"(%struct.myjmp_buf* %regs, %struct.myjmp_buf* %regs)
+  ret void
+}