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| author | Eric Christopher <echristo@apple.com> | 2011-03-26 01:21:03 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@apple.com> | 2011-03-26 01:21:03 +0000 |
| commit | 29aeed1bf8c70eec381d5cbf7de2710b5157d526 (patch) | |
| tree | d24dfe54fcc27a97879cd842c4a0f4f730d55f33 /test/CodeGen/Thumb2/bfi.ll | |
| parent | e420449e80191051d6d1636883f2400cb0a8ace5 (diff) | |
| download | llvm-29aeed1bf8c70eec381d5cbf7de2710b5157d526.tar.gz llvm-29aeed1bf8c70eec381d5cbf7de2710b5157d526.tar.bz2 llvm-29aeed1bf8c70eec381d5cbf7de2710b5157d526.tar.xz | |
Fix the bfi handling for or (and a mask) (and b mask). We need the two
masks to match inversely for the code as is to work. For the example given
we actually want:
bfi r0, r2, #1, #1
not #0, however, given the way the pattern is written it's not possible
at the moment.
Fixes rdar://9177502
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128320 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Thumb2/bfi.ll')
| -rw-r--r-- | test/CodeGen/Thumb2/bfi.ll | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb2/bfi.ll b/test/CodeGen/Thumb2/bfi.ll index 6fb2fc888d..0405d98430 100644 --- a/test/CodeGen/Thumb2/bfi.ll +++ b/test/CodeGen/Thumb2/bfi.ll @@ -49,3 +49,14 @@ define i32 @f4(i32 %a) nounwind { %ins12 = or i32 %ins7, 3137 ret i32 %ins12 } + +; rdar://9177502 +define i32 @f5(i32 %a, i32 %b) nounwind readnone { +entry: +; CHECK f5 +; CHECK-NOT: bfi r0, r2, #0, #1 +%and = and i32 %a, 2 +%b.masked = and i32 %b, -2 +%and3 = or i32 %b.masked, %and +ret i32 %and3 +} |