Add variable-width shifts for MSP430

llvm-svn: 93468

1 files changed, 51 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/MSP430/shifts.ll b/llvm/test/CodeGen/MSP430/shifts.ll
new file mode 100644
index 00000000000..b5b3054b962
--- /dev/null
+++ b/llvm/test/CodeGen/MSP430/shifts.ll
@@ -0,0 +1,51 @@
+; RUN: llc < %s | FileCheck %s
+target datalayout = "e-p:16:8:8-i8:8:8-i16:8:8-i32:8:8-n8:16"
+target triple = "msp430-elf"
+
+define zeroext i8 @lshr8(i8 zeroext %a, i8 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK: lshr8:
+; CHECK: rrc.b
+  %shr = lshr i8 %a, %cnt
+  ret i8 %shr
+}
+
+define signext i8 @ashr8(i8 signext %a, i8 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK: ashr8:
+; CHECK: rra.b
+  %shr = ashr i8 %a, %cnt
+  ret i8 %shr
+}
+
+define zeroext i8 @shl8(i8 zeroext %a, i8 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK: shl8
+; CHECK: rla.b
+  %shl = shl i8 %a, %cnt
+  ret i8 %shl
+}
+
+define zeroext i16 @lshr16(i16 zeroext %a, i16 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK: lshr16:
+; CHECK: rrc.w
+  %shr = lshr i16 %a, %cnt
+  ret i16 %shr
+}
+
+define signext i16 @ashr16(i16 signext %a, i16 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK: ashr16:
+; CHECK: rra.w
+  %shr = ashr i16 %a, %cnt
+  ret i16 %shr
+}
+
+define zeroext i16 @shl16(i16 zeroext %a, i16 zeroext %cnt) nounwind readnone {
+entry:
+; CHECK: shl16:
+; CHECK: rla.w
+  %shl = shl i16 %a, %cnt
+  ret i16 %shl
+}