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author | Dan Gohman <djg@cray.com> | 2007-07-18 16:29:46 +0000 |
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committer | Dan Gohman <djg@cray.com> | 2007-07-18 16:29:46 +0000 |
commit | f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cc (patch) | |
tree | ebb79ea1ee5e3bc1fdf38541a811a8b804f0679a /test/CodeGen/PowerPC/and_sext.ll | |
download | external_llvm-f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cc.zip external_llvm-f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cc.tar.gz external_llvm-f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cc.tar.bz2 |
It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/PowerPC/and_sext.ll')
-rw-r--r-- | test/CodeGen/PowerPC/and_sext.ll | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/and_sext.ll b/test/CodeGen/PowerPC/and_sext.ll new file mode 100644 index 0000000..ac27798 --- /dev/null +++ b/test/CodeGen/PowerPC/and_sext.ll @@ -0,0 +1,28 @@ +; These tests should not contain a sign extend. +; RUN: llvm-as < %s | llc -march=ppc32 | not grep extsh +; RUN: llvm-as < %s | llc -march=ppc32 | not grep extsb + +define i32 @test1(i32 %mode.0.i.0) { + %tmp.79 = trunc i32 %mode.0.i.0 to i16 + %tmp.80 = sext i16 %tmp.79 to i32 + %tmp.81 = and i32 %tmp.80, 24 + ret i32 %tmp.81 +} + +define i16 @test2(i16 sext %X, i16 sext %x) sext { + %tmp = sext i16 %X to i32 + %tmp1 = sext i16 %x to i32 + %tmp2 = add i32 %tmp, %tmp1 + %tmp4 = ashr i32 %tmp2, 1 + %tmp5 = trunc i32 %tmp4 to i16 + %tmp45 = sext i16 %tmp5 to i32 + %retval = trunc i32 %tmp45 to i16 + ret i16 %retval +} + +define i16 @test3(i32 zext %X) sext { + %tmp1 = lshr i32 %X, 16 + %tmp2 = trunc i32 %tmp1 to i16 + ret i16 %tmp2 +} + |