Test case for r133858 (tail call optimize in the presence of byval).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133863 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/sibcall-byval.ll b/test/CodeGen/X86/sibcall-byval.ll
new file mode 100644 (file)
index 0000000..c335f30
--- /dev/null
+++ b/test/CodeGen/X86/sibcall-byval.ll
@@ -0,0 +1,31 @@
+; RUN: llc < %s -mtriple=i386-apple-darwin   | FileCheck %s -check-prefix=32
+; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s -check-prefix=64
+
+%struct.p = type { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32 }
+
+define i32 @f(%struct.p* byval align 4 %q) nounwind ssp {
+entry:
+; 32: _f:
+; 32: jmp L_g$stub
+
+; 64: _f:
+; 64: jmp _g
+  %call = tail call i32 @g(%struct.p* byval align 4 %q) nounwind
+  ret i32 %call
+}
+
+declare i32 @g(%struct.p* byval align 4)
+
+define i32 @h(%struct.p* byval align 4 %q, i32 %r) nounwind ssp {
+entry:
+; 32: _h:
+; 32: jmp L_i$stub
+
+; 64: _h:
+; 64: jmp _i
+
+  %call = tail call i32 @i(%struct.p* byval align 4 %q, i32 %r) nounwind
+  ret i32 %call
+}
+
+declare i32 @i(%struct.p* byval align 4, i32)