[llvm] 175f6e3 - [PowerPC][NFC] Add a test for vrsave usage iinline asm.

[Sean Fertile via llvm-commits]

Author: Sean Fertile
Date: 2020-02-21T09:56:15-05:00
New Revision: 175f6e309ab911d43ab21707587615341112f3b5

URL: https://github.com/llvm/llvm-project/commit/175f6e309ab911d43ab21707587615341112f3b5
DIFF: https://github.com/llvm/llvm-project/commit/175f6e309ab911d43ab21707587615341112f3b5.diff

LOG: [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.

Added: 
    llvm/test/CodeGen/PowerPC/vrsave-inline-asm.ll

Modified: 
    

Removed: 
    


################################################################################
diff  --git a/llvm/test/CodeGen/PowerPC/vrsave-inline-asm.ll b/llvm/test/CodeGen/PowerPC/vrsave-inline-asm.ll
new file mode 100644
index 000000000000..32dd513bd068
--- /dev/null
+++ b/llvm/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