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author | Nate Begeman <natebegeman@mac.com> | 2006-09-22 05:49:57 +0000 |
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committer | Nate Begeman <natebegeman@mac.com> | 2006-09-22 05:49:57 +0000 |
commit | 62929eb3d61ccf4a63045994f62c7a9dec5891a8 (patch) | |
tree | af4f0b53e73cfaab7fe5b814ec6631a8d17be5e6 /test/CodeGen/PowerPC/rlwinm2.ll | |
parent | f30e0eed4c298084c55e6c8e260b48bf62318227 (diff) | |
download | llvm-62929eb3d61ccf4a63045994f62c7a9dec5891a8.tar.gz llvm-62929eb3d61ccf4a63045994f62c7a9dec5891a8.tar.bz2 llvm-62929eb3d61ccf4a63045994f62c7a9dec5891a8.tar.xz |
Testcase for better rotate left and mask support
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30579 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/PowerPC/rlwinm2.ll')
-rw-r--r-- | test/CodeGen/PowerPC/rlwinm2.ll | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/rlwinm2.ll b/test/CodeGen/PowerPC/rlwinm2.ll new file mode 100644 index 0000000000..8a789ee6e6 --- /dev/null +++ b/test/CodeGen/PowerPC/rlwinm2.ll @@ -0,0 +1,30 @@ +; All of these ands and shifts should be folded into rlw[i]nm instructions +; RUN: llvm-as < %s | llc -march=ppc32 | not grep and && +; RUN: llvm-as < %s | llc -march=ppc32 | not grep srawi && +; RUN: llvm-as < %s | llc -march=ppc32 | not grep srwi && +; RUN: llvm-as < %s | llc -march=ppc32 | not grep slwi && +; RUN: llvm-as < %s | llc -march=ppc32 | grep rlwnm | wc -l | grep 1 && +; RUN: llvm-as < %s | llc -march=ppc32 | grep rlwinm | wc -l | grep 1 + + +implementation ; Functions: + +uint %test1(uint %X, int %Y) { +entry: + %tmp = cast int %Y to ubyte ; <ubyte> [#uses=2] + %tmp1 = shl uint %X, ubyte %tmp ; <uint> [#uses=1] + %tmp2 = sub ubyte 32, %tmp ; <ubyte> [#uses=1] + %tmp3 = shr uint %X, ubyte %tmp2 ; <uint> [#uses=1] + %tmp4 = or uint %tmp1, %tmp3 ; <uint> [#uses=1] + %tmp6 = and uint %tmp4, 127 ; <uint> [#uses=1] + ret uint %tmp6 +} + +uint %test2(uint %X) { +entry: + %tmp1 = shr uint %X, ubyte 27 ; <uint> [#uses=1] + %tmp2 = shl uint %X, ubyte 5 ; <uint> [#uses=1] + %tmp2.masked = and uint %tmp2, 96 ; <uint> [#uses=1] + %tmp5 = or uint %tmp1, %tmp2.masked ; <uint> [#uses=1] + ret uint %tmp5 +} |