1 files changed, 101 insertions, 0 deletions
diff --git a/test/CodeGen/BPF/shifts.ll b/test/CodeGen/BPF/shifts.ll
new file mode 100644
index 0000000..898ae2d
--- /dev/null
+++ b/test/CodeGen/BPF/shifts.ll
@@ -0,0 +1,101 @@
+; RUN: llc < %s -march=bpf -show-mc-encoding | FileCheck %s
+; test little endian only for now
+
+define zeroext i8 @lshr8(i8 zeroext %a, i8 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK-LABEL: lshr8:
+; CHECK: srl r1, r2 # encoding: [0x7f,0x21,0x00,0x00,0x00,0x00,0x00,0x00]
+  %shr = lshr i8 %a, %cnt
+  ret i8 %shr
+}
+
+define signext i8 @ashr8(i8 signext %a, i8 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK-LABEL: ashr8:
+; CHECK: sra r1, r2 # encoding: [0xcf,0x21,0x00,0x00,0x00,0x00,0x00,0x00]
+  %shr = ashr i8 %a, %cnt
+  ret i8 %shr
+}
+
+define zeroext i8 @shl8(i8 zeroext %a, i8 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK: shl8
+; CHECK: sll r1, r2 # encoding: [0x6f,0x21,0x00,0x00,0x00,0x00,0x00,0x00]
+  %shl = shl i8 %a, %cnt
+  ret i8 %shl
+}
+
+define zeroext i16 @lshr16(i16 zeroext %a, i16 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK-LABEL: lshr16:
+; CHECK: srl r1, r2 # encoding: [0x7f,0x21,0x00,0x00,0x00,0x00,0x00,0x00]
+  %shr = lshr i16 %a, %cnt
+  ret i16 %shr
+}
+
+define signext i16 @ashr16(i16 signext %a, i16 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK-LABEL: ashr16:
+; CHECK: sra r1, r2 # encoding: [0xcf,0x21,0x00,0x00,0x00,0x00,0x00,0x00]
+  %shr = ashr i16 %a, %cnt
+  ret i16 %shr
+}
+
+define zeroext i16 @shl16(i16 zeroext %a, i16 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK-LABEL: shl16:
+; CHECK: sll r1, r2 # encoding: [0x6f,0x21,0x00,0x00,0x00,0x00,0x00,0x00]
+  %shl = shl i16 %a, %cnt
+  ret i16 %shl
+}
+
+define zeroext i32 @lshr32(i32 zeroext %a, i32 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK-LABEL: lshr32:
+; CHECK: srl r1, r2 # encoding: [0x7f,0x21,0x00,0x00,0x00,0x00,0x00,0x00]
+; CHECK: slli r1, 32 # encoding: [0x67,0x01,0x00,0x00,0x20,0x00,0x00,0x00]
+  %shr = lshr i32 %a, %cnt
+  ret i32 %shr
+}
+
+define signext i32 @ashr32(i32 signext %a, i32 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK-LABEL: ashr32:
+; CHECK: sra r1, r2 # encoding: [0xcf,0x21,0x00,0x00,0x00,0x00,0x00,0x00]
+  %shr = ashr i32 %a, %cnt
+  ret i32 %shr
+}
+
+define zeroext i32 @shl32(i32 zeroext %a, i32 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK-LABEL: shl32:
+; CHECK: sll r1, r2 # encoding: [0x6f,0x21,0x00,0x00,0x00,0x00,0x00,0x00]
+  %shl = shl i32 %a, %cnt
+  ret i32 %shl
+}
+
+define zeroext i64 @lshr64(i64 zeroext %a, i64 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK-LABEL: lshr64:
+; CHECK: srl r1, r2 # encoding: [0x7f,0x21,0x00,0x00,0x00,0x00,0x00,0x00]
+  %shr = lshr i64 %a, %cnt
+  ret i64 %shr
+}
+
+define signext i64 @ashr64(i64 signext %a, i64 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK-LABEL: ashr64:
+; CHECK: sra r1, r2 # encoding: [0xcf,0x21,0x00,0x00,0x00,0x00,0x00,0x00]
+  %shr = ashr i64 %a, %cnt
+  ret i64 %shr
+}
+
+define zeroext i64 @shl64(i64 zeroext %a, i64 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK-LABEL: shl64:
+; CHECK: sll r1, r2 # encoding: [0x6f,0x21,0x00,0x00,0x00,0x00,0x00,0x00]
+; CHECK: mov r0, r1 # encoding: [0xbf,0x10,0x00,0x00,0x00,0x00,0x00,0x00]
+; CHECK: ret # encoding: [0x95,0x00,0x00,0x00,0x00,0x00,0x00,0x00]
+  %shl = shl i64 %a, %cnt
+  ret i64 %shl
+}