From 8a3553276e4bf7eec6a2e0c2886bee1cec4d7ec3 Mon Sep 17 00:00:00 2001
From: Sean Fertile <sd.fertile@gmail.com>
Date: Thu, 20 Feb 2020 09:18:10 -0500
Subject: [PATCH] [PowerPC][NFC] Add a test for vrsave usage iinline asm.

Add a lit test that that uses vrsave register in the clobber list, and
tests the extended mnemonics mtvrsave and mfvrsave.
---
 test/CodeGen/PowerPC/vrsave-inline-asm.ll | 42 +++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 test/CodeGen/PowerPC/vrsave-inline-asm.ll

diff --git a/test/CodeGen/PowerPC/vrsave-inline-asm.ll b/test/CodeGen/PowerPC/vrsave-inline-asm.ll
new file mode 100644
index 00000000000..32dd513bd06
--- /dev/null
+++ b/test/CodeGen/PowerPC/vrsave-inline-asm.ll
@@ -0,0 +1,42 @@
+; RUN: llc -mtriple=powerpc64-unknown-linux-gnu -verify-machineinstrs < %s | FileCheck %s
+; RUN: llc -mtriple=powerpc64le-unknown-linux-gnu -verify-machineinstrs < %s | FileCheck %s
+; RUN: llc -mtriple=powerpc-unknown-linux-gnu -verify-machineinstrs < %s | FileCheck %s
+
+; RUN: llc -mtriple=powerpc64-unknown-freebsd -verify-machineinstrs < %s | FileCheck %s
+; RUN: llc -mtriple=powerpc-unknown-freebsd -verify-machineinstrs < %s | FileCheck %s
+
+define dso_local void @moveToVRSave(i32 signext %i) {
+entry:
+  tail call void asm sideeffect "mtvrsave $0", "r,~{vrsave}"(i32 %i)
+  ret void
+}
+
+define dso_local signext i32 @moveFromVRSave() {
+entry:
+  %0 = tail call i32 asm sideeffect "mfvrsave $0", "=r"()
+  ret i32 %0
+}
+
+define dso_local void @moveToSPR(i32 signext %i) {
+entry:
+  tail call void asm sideeffect "mtspr 256, $0", "r,~{vrsave}"(i32 %i)
+  ret void
+}
+
+define dso_local signext i32 @moveFromSPR() {
+entry:
+  %0 = tail call i32 asm sideeffect "mfspr $0, 256", "=r"()
+  ret i32 %0
+}
+
+; CHECK-LABEl: moveToVRSave:
+; CHECK:         mtvrsave 3
+
+; CHECK-LABEL: moveFromVRSave:
+; CHECK:         mfvrsave {{[0-9]+}}
+
+; CHECK-LABEL: moveToSPR:
+; CHECK:         mtspr 256, 3
+
+; CHECK-LABEL: moveFromSPR:
+; CHECK:         mfspr {{[0-9]}}, 256