diff options
Diffstat (limited to 'llvm/test/Regression/Transforms/InstCombine/bit-tracking.ll')
| -rw-r--r-- | llvm/test/Regression/Transforms/InstCombine/bit-tracking.ll | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/llvm/test/Regression/Transforms/InstCombine/bit-tracking.ll b/llvm/test/Regression/Transforms/InstCombine/bit-tracking.ll index c979833bc09..aa81da92def 100644 --- a/llvm/test/Regression/Transforms/InstCombine/bit-tracking.ll +++ b/llvm/test/Regression/Transforms/InstCombine/bit-tracking.ll @@ -1,29 +1,7 @@ ; This file contains various testcases that require tracking whether bits are ; set or cleared by various instructions. -; XFAIL: * ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep %ELIM -; test1 - Eliminating the casts in this testcase (by narrowing the AND -; operation) allows instcombine to realize the function always returns false. -; -bool %test1(int %A, int %B) { - %C1 = setlt int %A, %B - %ELIM1 = cast bool %C1 to uint - %C2 = setgt int %A, %B - %ELIM2 = cast bool %C2 to uint - %C3 = and uint %ELIM1, %ELIM2 - %ELIM3 = cast uint %C3 to bool - ret bool %ELIM3 -} - -; See if we can eliminate the shifts... -int %test2(int %B) { - %ELIM1 = shl int %B, ubyte 31 - %ELIM2 = shr int %ELIM1, ubyte 31 - %inc = add int %ELIM2, 1 ; == xor int %B, 1 - ret int %inc -} - ; Reduce down to a single XOR int %test3(int %B) { %ELIMinc = and int %B, 1 |

