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from cbcdc5db516 [MSP430] Allow msp430_intrcc functions to not have interrup [...] new 0b1a028fea3 [NFC][InstCombine] Add tests for (X - Y) < X --> Y <= X [...] new 864d2f9cf82 [InstCombine] Fold (A - B) u>=/u< A --> B u>/u<= A iff B != 0
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Summary of changes: lib/Transforms/InstCombine/InstCombineAndOrXor.cpp | 15 --- lib/Transforms/InstCombine/InstCombineCompares.cpp | 17 +++- lib/Transforms/InstCombine/InstCombineInternal.h | 2 +- .../result-of-usub-is-non-zero-and-no-overflow.ll | 8 +- ...nderflow-check-to-comparison-of-sub-operands.ll | 111 +++++++++++++++++++++ 5 files changed, 129 insertions(+), 24 deletions(-) create mode 100644 test/Transforms/InstCombine/strict-sub-underflow-check-to-compa [...]