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| author | Evan Cheng <evan.cheng@apple.com> | 2009-07-03 01:43:10 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-07-03 01:43:10 +0000 |
| commit | d27c9fc403ae906c60ca3dfee72001f7e1930492 (patch) | |
| tree | ebc165bd75b92cdf0a02e4cbc4a1b3fbe39adce0 /test/CodeGen/Thumb2/thumb2-sxt_rot.ll | |
| parent | 292aef33e1ed71e720f4e8d0b7332a1013398836 (diff) | |
| download | llvm-d27c9fc403ae906c60ca3dfee72001f7e1930492.tar.gz llvm-d27c9fc403ae906c60ca3dfee72001f7e1930492.tar.bz2 llvm-d27c9fc403ae906c60ca3dfee72001f7e1930492.tar.xz | |
Add thumb2 sign / zero extend with rotate instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74755 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Thumb2/thumb2-sxt_rot.ll')
| -rw-r--r-- | test/CodeGen/Thumb2/thumb2-sxt_rot.ll | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb2/thumb2-sxt_rot.ll b/test/CodeGen/Thumb2/thumb2-sxt_rot.ll new file mode 100644 index 0000000000..4afe354028 --- /dev/null +++ b/test/CodeGen/Thumb2/thumb2-sxt_rot.ll @@ -0,0 +1,29 @@ +; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | \ +; RUN: grep sxtb | count 2 +; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | \ +; RUN: grep sxtb | grep ror | count 1 +; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | \ +; RUN: grep sxtab | count 1 + +define i32 @test0(i8 %A) { + %B = sext i8 %A to i32 + ret i32 %B +} + +define i8 @test1(i32 %A) signext { + %B = lshr i32 %A, 8 + %C = shl i32 %A, 24 + %D = or i32 %B, %C + %E = trunc i32 %D to i8 + ret i8 %E +} + +define i32 @test2(i32 %A, i32 %X) signext { + %B = lshr i32 %A, 8 + %C = shl i32 %A, 24 + %D = or i32 %B, %C + %E = trunc i32 %D to i8 + %F = sext i8 %E to i32 + %G = add i32 %F, %X + ret i32 %G +} |