diff options
Diffstat (limited to 'test/CodeGen/ARM/rev.ll')
-rw-r--r-- | test/CodeGen/ARM/rev.ll | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/rev.ll b/test/CodeGen/ARM/rev.ll index 4170ff3..ea44c28 100644 --- a/test/CodeGen/ARM/rev.ll +++ b/test/CodeGen/ARM/rev.ll @@ -54,3 +54,73 @@ entry: %conv8 = ashr exact i32 %sext, 16 ret i32 %conv8 } + +; rdar://9609059 +define i32 @test5(i32 %i) nounwind readnone { +entry: +; CHECK: test5 +; CHECK: revsh r0, r0 + %shl = shl i32 %i, 24 + %shr = ashr exact i32 %shl, 16 + %shr23 = lshr i32 %i, 8 + %and = and i32 %shr23, 255 + %or = or i32 %shr, %and + ret i32 %or +} + +; rdar://9609108 +define i32 @test6(i32 %x) nounwind readnone { +entry: +; CHECK: test6 +; CHECK: rev16 r0, r0 + %and = shl i32 %x, 8 + %shl = and i32 %and, 65280 + %and2 = lshr i32 %x, 8 + %shr11 = and i32 %and2, 255 + %shr5 = and i32 %and2, 16711680 + %shl9 = and i32 %and, -16777216 + %or = or i32 %shr5, %shl9 + %or6 = or i32 %or, %shr11 + %or10 = or i32 %or6, %shl + ret i32 %or10 +} + +; rdar://9164521 +define i32 @test7(i32 %a) nounwind readnone { +entry: +; CHECK: test7 +; CHECK: rev r0, r0 +; CHECK: lsr r0, r0, #16 + %and = lshr i32 %a, 8 + %shr3 = and i32 %and, 255 + %and2 = shl i32 %a, 8 + %shl = and i32 %and2, 65280 + %or = or i32 %shr3, %shl + ret i32 %or +} + +define i32 @test8(i32 %a) nounwind readnone { +entry: +; CHECK: test8 +; CHECK: revsh r0, r0 + %and = lshr i32 %a, 8 + %shr4 = and i32 %and, 255 + %and2 = shl i32 %a, 8 + %or = or i32 %shr4, %and2 + %sext = shl i32 %or, 16 + %conv3 = ashr exact i32 %sext, 16 + ret i32 %conv3 +} + +define zeroext i16 @test9(i16 zeroext %v) nounwind readnone { +entry: +; CHECK: test9 +; CHECK: rev r0, r0 +; CHECK: lsr r0, r0, #16 + %conv = zext i16 %v to i32 + %shr4 = lshr i32 %conv, 8 + %shl = shl nuw nsw i32 %conv, 8 + %or = or i32 %shr4, %shl + %conv3 = trunc i32 %or to i16 + ret i16 %conv3 +} |