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| author | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-10-17 11:16:57 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@linux.vnet.ibm.com> | 2013-10-17 11:16:57 +0000 |
| commit | f9a5e40b90e5a98cfae5c0f8a42eedd71c849dbc (patch) | |
| tree | 6b2d84bec6f2deb4205d3e6d0f1c26ccc591267a /test/CodeGen/PowerPC | |
| parent | 888cbad774acdff580611f6b07daaf96e825b7e7 (diff) | |
| download | external_llvm-f9a5e40b90e5a98cfae5c0f8a42eedd71c849dbc.zip external_llvm-f9a5e40b90e5a98cfae5c0f8a42eedd71c849dbc.tar.gz external_llvm-f9a5e40b90e5a98cfae5c0f8a42eedd71c849dbc.tar.bz2 | |
Replace sra with srl if a single sign bit is required
E.g. (and (sra (i32 x) 31) 2) -> (and (srl (i32 x) 30) 2).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192884 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/PowerPC')
| -rw-r--r-- | test/CodeGen/PowerPC/rlwimi-and.ll | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/test/CodeGen/PowerPC/rlwimi-and.ll b/test/CodeGen/PowerPC/rlwimi-and.ll index e20a13f..7963249 100644 --- a/test/CodeGen/PowerPC/rlwimi-and.ll +++ b/test/CodeGen/PowerPC/rlwimi-and.ll @@ -28,12 +28,11 @@ codeRepl17: ; preds = %codeRepl4 store i16 %rvml38.sroa.0.0.insert.insert, i16* undef, align 2 unreachable +; FIXME: the SLWI could be folded into the RLWIMI to give a rotate of 8. ; CHECK: @test -; CHECK-DAG: slwi [[R1:[0-9]+]], -; CHECK-DAG: rlwinm [[R2:[0-9]+]], -; CHECK-DAG: srawi [[R3:[0-9]+]], [[R1]] -; CHECK-DAG: rlwinm [[R4:[0-9]+]], [[R3]], 0, 23, 23 -; CHECK: rlwimi [[R4]], [[R2]], 0, +; CHECK-DAG: slwi [[R1:[0-9]+]], {{[0-9]+}}, 31 +; CHECK-DAG: rlwinm [[R2:[0-9]+]], {{[0-9]+}}, 0, 31, 31 +; CHECK: rlwimi [[R2]], [[R1]], 9, 23, 23 codeRepl29: ; preds = %codeRepl1 unreachable |