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| author | Reid Spencer <rspencer@reidspencer.com> | 2007-02-02 02:16:23 +0000 |
|---|---|---|
| committer | Reid Spencer <rspencer@reidspencer.com> | 2007-02-02 02:16:23 +0000 |
| commit | 832254e1c2387c0cbeb0a820b8315fbe85cb003a (patch) | |
| tree | d3d0c15237b69dfda4ea152775417f2cc67b369b /test/CodeGen/ARM/sxt_rot.ll | |
| parent | 9a2ef9509e76869c3d658fb3e321d9b9e9d479d9 (diff) | |
| download | external_llvm-832254e1c2387c0cbeb0a820b8315fbe85cb003a.zip external_llvm-832254e1c2387c0cbeb0a820b8315fbe85cb003a.tar.gz external_llvm-832254e1c2387c0cbeb0a820b8315fbe85cb003a.tar.bz2 | |
Changes to support making the shift instructions be true BinaryOperators.
This feature is needed in order to support shifts of more than 255 bits
on large integer types. This changes the syntax for llvm assembly to
make shl, ashr and lshr instructions look like a binary operator:
shl i32 %X, 1
instead of
shl i32 %X, i8 1
Additionally, this should help a few passes perform additional optimizations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33776 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/ARM/sxt_rot.ll')
| -rw-r--r-- | test/CodeGen/ARM/sxt_rot.ll | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/test/CodeGen/ARM/sxt_rot.ll b/test/CodeGen/ARM/sxt_rot.ll index 3f1483b..f865ac1 100644 --- a/test/CodeGen/ARM/sxt_rot.ll +++ b/test/CodeGen/ARM/sxt_rot.ll @@ -4,16 +4,16 @@ ; RUN: llvm-as < %s | llc -march=arm -mattr=+v6 | grep "sxtab" | wc -l | grep 1 define i8 @test1(i32 %A) sext { - %B = lshr i32 %A, i8 8 - %C = shl i32 %A, i8 24 + %B = lshr i32 %A, 8 + %C = shl i32 %A, 24 %D = or i32 %B, %C %E = trunc i32 %D to i8 ret i8 %E } define i32 @test2(i32 %A, i32 %X) sext { - %B = lshr i32 %A, i8 8 - %C = shl i32 %A, i8 24 + %B = lshr i32 %A, 8 + %C = shl i32 %A, 24 %D = or i32 %B, %C %E = trunc i32 %D to i8 %F = sext i8 %E to i32 |