From 67c32a98315f785a9ec9d531c1f571a0196c7463 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Sun, 18 Jan 2015 16:17:27 +0000
Subject: Vendor import of llvm RELEASE_360/rc1 tag r226102 (effectively, 3.6.0
 RC1): https://llvm.org/svn/llvm-project/llvm/tags/RELEASE_360/rc1@226102

---
 test/CodeGen/SPARC/empty-functions.ll | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 test/CodeGen/SPARC/empty-functions.ll

(limited to 'test/CodeGen/SPARC/empty-functions.ll')

diff --git a/test/CodeGen/SPARC/empty-functions.ll b/test/CodeGen/SPARC/empty-functions.ll
new file mode 100644
index 000000000000..38d288903d4a
--- /dev/null
+++ b/test/CodeGen/SPARC/empty-functions.ll
@@ -0,0 +1,32 @@
+; RUN: llc < %s -mtriple=sparc-linux-gnu | FileCheck -check-prefix=LINUX-NO-FP %s
+; RUN: llc < %s -mtriple=sparc-linux-gnu -disable-fp-elim | FileCheck -check-prefix=LINUX-FP %s
+
+define void @func() {
+entry:
+  unreachable
+}
+
+; An empty function is perfectly fine on ELF.
+; LINUX-NO-FP: func:
+; LINUX-NO-FP-NEXT: .cfi_startproc
+; LINUX-NO-FP-NEXT: {{^}}!
+; LINUX-NO-FP-NEXT: {{^}}.L{{.*}}:{{$}}
+; LINUX-NO-FP-NEXT: .size   func, .L{{.*}}-func
+; LINUX-NO-FP-NEXT: .cfi_endproc
+
+; A cfi directive can point to the end of a function. It (and in fact the
+; entire body) could be optimized out because of the unreachable, but we
+; don't do it right now.
+; LINUX-FP: func:
+; LINUX-FP-NEXT: .cfi_startproc
+; LINUX-FP-NEXT: {{^}}!
+; LINUX-FP-NEXT: save %sp, -96, %sp
+; LINUX-FP-NEXT: {{^}}.L{{.*}}:{{$}}
+; LINUX-FP-NEXT: .cfi_def_cfa_register %fp
+; LINUX-FP-NEXT: {{^}}.L{{.*}}:{{$}}
+; LINUX-FP-NEXT: .cfi_window_save
+; LINUX-FP-NEXT: {{^}}.L{{.*}}:{{$}}
+; LINUX-FP-NEXT: .cfi_register 15, 31
+; LINUX-FP-NEXT: {{^}}.L{{.*}}:{{$}}
+; LINUX-FP-NEXT: .size   func, .Ltmp3-func
+; LINUX-FP-NEXT: .cfi_endproc
-- 
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