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Diffstat (limited to 'test/CodeGen/Thumb2/thumb2-rsb.ll')
-rw-r--r-- | test/CodeGen/Thumb2/thumb2-rsb.ll | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/test/CodeGen/Thumb2/thumb2-rsb.ll b/test/CodeGen/Thumb2/thumb2-rsb.ll index 934e377..5779687 100644 --- a/test/CodeGen/Thumb2/thumb2-rsb.ll +++ b/test/CodeGen/Thumb2/thumb2-rsb.ll @@ -1,9 +1,30 @@ -; XFAIL: * -; this will match as "sub" until we get register shifting +; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {rsb\\W*r\[0-9\],\\W*r\[0-9\],\\W*r\[0-9\],\\W*lsl\\W*#5$} | count 1 +; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {rsb\\W*r\[0-9\],\\W*r\[0-9\],\\W*r\[0-9\],\\W*lsr\\W*#6$} | count 1 +; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {rsb\\W*r\[0-9\],\\W*r\[0-9\],\\W*r\[0-9\],\\W*asr\\W*#7$} | count 1 +; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {rsb\\W*r\[0-9\],\\W*r\[0-9\],\\W*r\[0-9\],\\W*ror\\W*#8$} | count 1 -; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {rsb\\W*r\[0-9\],\\W*r\[0-9\],\\W*r\[0-9\]*} | count 1 +define i32 @f2(i32 %a, i32 %b) { + %tmp = shl i32 %b, 5 + %tmp1 = sub i32 %tmp, %a + ret i32 %tmp1 +} + +define i32 @f3(i32 %a, i32 %b) { + %tmp = lshr i32 %b, 6 + %tmp1 = sub i32 %tmp, %a + ret i32 %tmp1 +} + +define i32 @f4(i32 %a, i32 %b) { + %tmp = ashr i32 %b, 7 + %tmp1 = sub i32 %tmp, %a + ret i32 %tmp1 +} -define i32 @f1(i32 %a, i32 %b) { - %tmp = sub i32 %b, %a - ret i32 %tmp +define i32 @f5(i32 %a, i32 %b) { + %l8 = shl i32 %a, 24 + %r8 = lshr i32 %a, 8 + %tmp = or i32 %l8, %r8 + %tmp1 = sub i32 %tmp, %a + ret i32 %tmp1 } |