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| author | Dan Gohman <djg@cray.com> | 2007-07-18 16:29:46 +0000 |
|---|---|---|
| committer | Dan Gohman <djg@cray.com> | 2007-07-18 16:29:46 +0000 |
| commit | f17a25c88b892d30c2b41ba7ecdfbdfb2b4be9cc (patch) | |
| tree | ebb79ea1ee5e3bc1fdf38541a811a8b804f0679a /test/CodeGen/X86/shl_elim.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/X86/shl_elim.ll')
| -rw-r--r-- | test/CodeGen/X86/shl_elim.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/CodeGen/X86/shl_elim.ll b/test/CodeGen/X86/shl_elim.ll new file mode 100644 index 0000000..2e48e52 --- /dev/null +++ b/test/CodeGen/X86/shl_elim.ll @@ -0,0 +1,13 @@ +; RUN: llvm-as < %s | llc -march=x86 | grep {movl 8(.esp), %eax} +; RUN: llvm-as < %s | llc -march=x86 | grep {shll .15, .eax} +; RUN: llvm-as < %s | llc -march=x86 | grep {sarl .16, .eax} + +define i32 @test1(i64 %a) { + %tmp29 = lshr i64 %a, 24 ; <i64> [#uses=1] + %tmp23 = trunc i64 %tmp29 to i32 ; <i32> [#uses=1] + %tmp410 = lshr i32 %tmp23, 9 ; <i32> [#uses=1] + %tmp45 = trunc i32 %tmp410 to i16 ; <i16> [#uses=1] + %tmp456 = sext i16 %tmp45 to i32 ; <i32> [#uses=1] + ret i32 %tmp456 +} + |