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| author | Evan Cheng <evan.cheng@apple.com> | 2007-12-13 00:43:27 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2007-12-13 00:43:27 +0000 |
| commit | 1314b00cf2edc49c24c814e66f3fad62a5da40e8 (patch) | |
| tree | ecf7af96653276ae9f7e25cdb11aea983369ccf5 /test/CodeGen/X86 | |
| parent | 3dd298fb62e74b1e7a05547c0d403dac980d128f (diff) | |
| download | external_llvm-1314b00cf2edc49c24c814e66f3fad62a5da40e8.zip external_llvm-1314b00cf2edc49c24c814e66f3fad62a5da40e8.tar.gz external_llvm-1314b00cf2edc49c24c814e66f3fad62a5da40e8.tar.bz2 | |
Fold some and + shift in x86 addressing mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44970 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86')
| -rw-r--r-- | test/CodeGen/X86/fold-and-shift.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/CodeGen/X86/fold-and-shift.ll b/test/CodeGen/X86/fold-and-shift.ll new file mode 100644 index 0000000..705b795 --- /dev/null +++ b/test/CodeGen/X86/fold-and-shift.ll @@ -0,0 +1,21 @@ +; RUN: llvm-as < %s | llc -march=x86 | not grep and + +define i32 @t1(i8* %X, i32 %i) { +entry: + %tmp2 = shl i32 %i, 2 ; <i32> [#uses=1] + %tmp4 = and i32 %tmp2, 1020 ; <i32> [#uses=1] + %tmp7 = getelementptr i8* %X, i32 %tmp4 ; <i8*> [#uses=1] + %tmp78 = bitcast i8* %tmp7 to i32* ; <i32*> [#uses=1] + %tmp9 = load i32* %tmp78, align 4 ; <i32> [#uses=1] + ret i32 %tmp9 +} + +define i32 @t2(i16* %X, i32 %i) { +entry: + %tmp2 = shl i32 %i, 1 ; <i32> [#uses=1] + %tmp4 = and i32 %tmp2, 131070 ; <i32> [#uses=1] + %tmp7 = getelementptr i16* %X, i32 %tmp4 ; <i16*> [#uses=1] + %tmp78 = bitcast i16* %tmp7 to i32* ; <i32*> [#uses=1] + %tmp9 = load i32* %tmp78, align 4 ; <i32> [#uses=1] + ret i32 %tmp9 +} |