From 5802f60355b8b9a1eaf0c0fc193de3b9c48853df Mon Sep 17 00:00:00 2001
From: Jacob Lifshay <programmerjake@gmail.com>
Date: Wed, 25 Aug 2021 21:45:37 -0700
Subject: add support for clobbering xer, cr, and cr[0-7] for asm! on
 OpenPower/PowerPC

Fixes #88315
---
 src/test/codegen/asm-powerpc-clobbers.rs | 48 ++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 src/test/codegen/asm-powerpc-clobbers.rs

(limited to 'src/test/codegen')

diff --git a/src/test/codegen/asm-powerpc-clobbers.rs b/src/test/codegen/asm-powerpc-clobbers.rs
new file mode 100644
index 00000000000..91a82c60120
--- /dev/null
+++ b/src/test/codegen/asm-powerpc-clobbers.rs
@@ -0,0 +1,48 @@
+// min-llvm-version: 10.0.1
+// revisions: powerpc powerpc64 powerpc64le
+//[powerpc] compile-flags: --target powerpc-unknown-linux-gnu
+//[powerpc] needs-llvm-components: powerpc
+//[powerpc64] compile-flags: --target powerpc64-unknown-linux-gnu
+//[powerpc64] needs-llvm-components: powerpc
+//[powerpc64le] compile-flags: --target powerpc64le-unknown-linux-gnu
+//[powerpc64le] needs-llvm-components: powerpc
+
+#![crate_type = "rlib"]
+#![feature(no_core, rustc_attrs, lang_items)]
+#![no_core]
+
+#[lang = "sized"]
+trait Sized {}
+
+#[rustc_builtin_macro]
+macro_rules! asm {
+    () => {};
+}
+
+// CHECK-LABEL: @cr_clobber
+// CHECK: call void asm sideeffect "", "~{cr}"()
+#[no_mangle]
+pub unsafe fn cr_clobber() {
+    asm!("", out("cr") _, options(nostack, nomem));
+}
+
+// CHECK-LABEL: @cr0_clobber
+// CHECK: call void asm sideeffect "", "~{cr0}"()
+#[no_mangle]
+pub unsafe fn cr0_clobber() {
+    asm!("", out("cr0") _, options(nostack, nomem));
+}
+
+// CHECK-LABEL: @cr5_clobber
+// CHECK: call void asm sideeffect "", "~{cr5}"()
+#[no_mangle]
+pub unsafe fn cr5_clobber() {
+    asm!("", out("cr5") _, options(nostack, nomem));
+}
+
+// CHECK-LABEL: @xer_clobber
+// CHECK: call void asm sideeffect "", "~{xer}"()
+#[no_mangle]
+pub unsafe fn xer_clobber() {
+    asm!("", out("xer") _, options(nostack, nomem));
+}
-- 
cgit 1.4.1-3-g733a5