xref: /aosp_15_r20/external/llvm/test/Transforms/InstCombine/2006-11-10-ashr-miscompile.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -instcombine -S | grep lshr
2*9880d681SAndroid Build Coastguard Worker; Verify this is not turned into -1.
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Workerdefine i32 @test(i8 %amt) {
5*9880d681SAndroid Build Coastguard Worker        %shift.upgrd.1 = zext i8 %amt to i32            ; <i32> [#uses=1]
6*9880d681SAndroid Build Coastguard Worker        %B = lshr i32 -1, %shift.upgrd.1                ; <i32> [#uses=1]
7*9880d681SAndroid Build Coastguard Worker        ret i32 %B
8*9880d681SAndroid Build Coastguard Worker}
9*9880d681SAndroid Build Coastguard Worker
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