xref: /aosp_15_r20/external/llvm/test/Analysis/ValueTracking/assume.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -instcombine -S | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Workerdefine i32 @assume_add(i32 %a, i32 %b) {
4*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @assume_add(
5*9880d681SAndroid Build Coastguard Worker  %1 = add i32 %a, %b
6*9880d681SAndroid Build Coastguard Worker  %last_two_digits = and i32 %1, 3
7*9880d681SAndroid Build Coastguard Worker  %2 = icmp eq i32 %last_two_digits, 0
8*9880d681SAndroid Build Coastguard Worker  call void @llvm.assume(i1 %2)
9*9880d681SAndroid Build Coastguard Worker  %3 = add i32 %1, 3
10*9880d681SAndroid Build Coastguard Worker; CHECK: %3 = or i32 %1, 3
11*9880d681SAndroid Build Coastguard Worker  ret i32 %3
12*9880d681SAndroid Build Coastguard Worker}
13*9880d681SAndroid Build Coastguard Worker
14*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.assume(i1)
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