Test case for r147017.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147018 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/Mips/bswap.ll b/test/CodeGen/Mips/bswap.ll
new file mode 100644 (file)
index 0000000..a8fc2cd
--- /dev/null
+++ b/test/CodeGen/Mips/bswap.ll
@@ -0,0 +1,25 @@
+; RUN: llc  < %s -march=mipsel -mcpu=mips32r2 | FileCheck %s -check-prefix=MIPS32
+; RUN: llc  < %s -march=mips64el -mcpu=mips64r2 | FileCheck %s -check-prefix=MIPS64
+
+define i32 @bswap32(i32 %x) nounwind readnone {
+entry:
+; MIPS32: bswap32:
+; MIPS32: wsbh $[[R0:[0-9]+]]
+; MIPS32: rotr ${{[0-9]+}}, $[[R0]], 16
+  %or.3 = call i32 @llvm.bswap.i32(i32 %x)
+  ret i32 %or.3
+}
+
+define i64 @bswap64(i64 %x) nounwind readnone {
+entry:
+; MIPS64: bswap64:
+; MIPS64: dsbh $[[R0:[0-9]+]]
+; MIPS64: dshd ${{[0-9]+}}, $[[R0]]
+  %or.7 = call i64 @llvm.bswap.i64(i64 %x)
+  ret i64 %or.7
+}
+
+declare i32 @llvm.bswap.i32(i32) nounwind readnone
+
+declare i64 @llvm.bswap.i64(i64) nounwind readnone
+