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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -S -passes=instcombine < %s | FileCheck %s
define i8 @pr98139(i16 %a, i16 %b, i1 %cond) {
; CHECK-LABEL: define i8 @pr98139(
; CHECK-SAME: i16 [[A:%.*]], i16 [[B:%.*]], i1 [[COND:%.*]]) {
; CHECK-NEXT: [[SEL:%.*]] = select i1 [[COND]], i16 1, i16 254
; CHECK-NEXT: [[COND1:%.*]] = icmp ne i16 [[B]], 0
; CHECK-NEXT: [[MASK:%.*]] = and i16 [[A]], 255
; CHECK-NEXT: [[COND2:%.*]] = icmp ne i16 [[MASK]], 255
; CHECK-NEXT: [[COND3:%.*]] = or i1 [[COND1]], [[COND2]]
; CHECK-NEXT: [[SEL2:%.*]] = select i1 [[COND3]], i16 [[SEL]], i16 255
; CHECK-NEXT: [[SUB:%.*]] = sub i16 [[SEL2]], [[A]]
; CHECK-NEXT: [[TRUNC:%.*]] = trunc i16 [[SUB]] to i8
; CHECK-NEXT: ret i8 [[TRUNC]]
;
%sel = select i1 %cond, i16 1, i16 254
%cond1 = icmp ne i16 %b, 0
%mask = and i16 %a, 255
%cond2 = icmp ne i16 %mask, 255
%cond3 = or i1 %cond1, %cond2
%sel2 = select i1 %cond3, i16 %sel, i16 255
%sub = sub i16 %sel2, %a
%trunc = trunc i16 %sub to i8
ret i8 %trunc
}
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