1 files changed, 26 insertions, 0 deletions
diff --git a/test/CodeGen/X86/x86-64-baseptr.ll b/test/CodeGen/X86/x86-64-baseptr.ll
new file mode 100644
index 0000000..7fd94fa
--- /dev/null
+++ b/test/CodeGen/X86/x86-64-baseptr.ll
@@ -0,0 +1,26 @@
+; RUN: llc -mtriple=x86_64-pc-linux -force-align-stack -stack-alignment=32 < %s | FileCheck %s
+; RUN: llc -mtriple=x86_64-pc-linux-gnux32 -force-align-stack -stack-alignment=32 < %s | FileCheck -check-prefix=X32ABI %s
+; This should run with NaCl as well ( -mtriple=x86_64-pc-nacl ) but currently doesn't due to PR22655
+
+; Make sure the correct register gets set up as the base pointer
+; This should be rbx for x64 and 64-bit NaCl and ebx for x32
+; CHECK-LABEL: base
+; CHECK: subq $32, %rsp
+; CHECK: movq %rsp, %rbx
+; X32ABI-LABEL: base
+; X32ABI: subl $32, %esp
+; X32ABI: movl %esp, %ebx
+; NACL-LABEL: base
+; NACL: subq $32, %rsp
+; NACL: movq %rsp, %rbx
+
+declare i32 @helper() nounwind
+define void @base() #0 {
+entry:
+  %k = call i32 @helper()
+  %a = alloca i32, i32 %k, align 4
+  store i32 0, i32* %a, align 4
+  ret void
+}
+
+attributes #0 = { nounwind uwtable "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"}