1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 2; RUN: opt -S -passes=instcombine < %s | FileCheck %s 3 4define i8 @pr98139(i16 %a, i16 %b, i1 %cond) { 5; CHECK-LABEL: define i8 @pr98139( 6; CHECK-SAME: i16 [[A:%.*]], i16 [[B:%.*]], i1 [[COND:%.*]]) { 7; CHECK-NEXT: [[SEL:%.*]] = select i1 [[COND]], i16 1, i16 254 8; CHECK-NEXT: [[COND1:%.*]] = icmp ne i16 [[B]], 0 9; CHECK-NEXT: [[MASK:%.*]] = and i16 [[A]], 255 10; CHECK-NEXT: [[COND2:%.*]] = icmp ne i16 [[MASK]], 255 11; CHECK-NEXT: [[COND3:%.*]] = or i1 [[COND1]], [[COND2]] 12; CHECK-NEXT: [[SEL2:%.*]] = select i1 [[COND3]], i16 [[SEL]], i16 255 13; CHECK-NEXT: [[SUB:%.*]] = sub i16 [[SEL2]], [[A]] 14; CHECK-NEXT: [[TRUNC:%.*]] = trunc i16 [[SUB]] to i8 15; CHECK-NEXT: ret i8 [[TRUNC]] 16; 17 %sel = select i1 %cond, i16 1, i16 254 18 %cond1 = icmp ne i16 %b, 0 19 %mask = and i16 %a, 255 20 %cond2 = icmp ne i16 %mask, 255 21 %cond3 = or i1 %cond1, %cond2 22 %sel2 = select i1 %cond3, i16 %sel, i16 255 23 %sub = sub i16 %sel2, %a 24 %trunc = trunc i16 %sub to i8 25 ret i8 %trunc 26} 27