1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4 2; RUN: opt -S -passes=instcombine < %s | FileCheck %s 3 4define i64 @pr80597(i1 %cond) { 5; CHECK-LABEL: define i64 @pr80597( 6; CHECK-SAME: i1 [[COND:%.*]]) { 7; CHECK-NEXT: entry: 8; CHECK-NEXT: [[ADD:%.*]] = select i1 [[COND]], i64 0, i64 -12884901888 9; CHECK-NEXT: [[SEXT1:%.*]] = add nsw i64 [[ADD]], 8836839514384105472 10; CHECK-NEXT: [[CMP:%.*]] = icmp ult i64 [[SEXT1]], -34359738368 11; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]] 12; CHECK: if.else: 13; CHECK-NEXT: [[SEXT2:%.*]] = ashr exact i64 [[ADD]], 1 14; CHECK-NEXT: [[ASHR:%.*]] = or disjoint i64 [[SEXT2]], 4418419761487020032 15; CHECK-NEXT: ret i64 [[ASHR]] 16; CHECK: if.then: 17; CHECK-NEXT: ret i64 0 18; 19entry: 20 %add = select i1 %cond, i64 0, i64 4294967293 21 %add8 = shl i64 %add, 32 22 %sext1 = add i64 %add8, 8836839514384105472 23 %cmp = icmp ult i64 %sext1, -34359738368 24 br i1 %cmp, label %if.then, label %if.else 25 26if.else: 27 %sext2 = or i64 %add8, 8836839522974040064 28 %ashr = ashr i64 %sext2, 1 29 ret i64 %ashr 30 31if.then: 32 ret i64 0 33} 34