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Diffstat (limited to 'test/CodeGen/Thumb2/thumb2-rev.ll')
| -rw-r--r-- | test/CodeGen/Thumb2/thumb2-rev.ll | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/test/CodeGen/Thumb2/thumb2-rev.ll b/test/CodeGen/Thumb2/thumb2-rev.ll index 4009da33b2607..27b1672e554a0 100644 --- a/test/CodeGen/Thumb2/thumb2-rev.ll +++ b/test/CodeGen/Thumb2/thumb2-rev.ll @@ -1,8 +1,23 @@ -; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2,+v7a | grep {rev\\W*r\[0-9\]*,\\W*r\[0-9\]*} | count 1 +; RUN: llc < %s -march=thumb -mattr=+thumb2,+v7a | FileCheck %s define i32 @f1(i32 %a) { +; CHECK: f1: +; CHECK: rev r0, r0 %tmp = tail call i32 @llvm.bswap.i32(i32 %a) ret i32 %tmp } declare i32 @llvm.bswap.i32(i32) nounwind readnone + +define i32 @f2(i32 %X) { +; CHECK: f2: +; CHECK: revsh r0, r0 + %tmp1 = lshr i32 %X, 8 + %tmp1.upgrd.1 = trunc i32 %tmp1 to i16 + %tmp3 = trunc i32 %X to i16 + %tmp2 = and i16 %tmp1.upgrd.1, 255 + %tmp4 = shl i16 %tmp3, 8 + %tmp5 = or i16 %tmp2, %tmp4 + %tmp5.upgrd.2 = sext i16 %tmp5 to i32 + ret i32 %tmp5.upgrd.2 +} |