1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -print-predicateinfo < %s 2>&1 | FileCheck %s 3define i1 @f(i32 %x, i1 %y) { 4; CHECK-LABEL: @f( 5; CHECK-NEXT: br i1 [[Y:%.*]], label [[BB0:%.*]], label [[BB1:%.*]] 6; CHECK: bb0: 7; CHECK-NEXT: [[CMP:%.*]] = icmp sge i32 [[X:%.*]], 0 8; CHECK: [[X_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X]]) 9; CHECK-NEXT: br i1 [[CMP]], label [[BB2:%.*]], label [[BB3:%.*]] 10; CHECK: bb1: 11; CHECK-NEXT: [[X2:%.*]] = add nuw nsw i32 [[X]], 1 12; CHECK-NEXT: [[CMP2:%.*]] = icmp sge i32 [[X2]], 2 13; CHECK: [[X2_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X2]]) 14; CHECK-NEXT: br i1 [[CMP2]], label [[BB2]], label [[BB3]] 15; CHECK: bb2: 16; CHECK-NEXT: [[X3:%.*]] = phi i32 [ [[X_0]], [[BB0]] ], [ [[X2_0]], [[BB1]] ] 17; CHECK-NEXT: br label [[BB3]] 18; CHECK: bb3: 19; CHECK-NEXT: ret i1 false 20; 21 br i1 %y, label %bb0, label %bb1 22 bb0: 23 %cmp = icmp sge i32 %x, 0 ; x > 0 24 br i1 %cmp, label %bb2, label %bb3 25 bb1: 26 %x2 = add nsw nuw i32 %x, 1 27 %cmp2 = icmp sge i32 %x2, 2 ; x+1 > 2 / x > 1 28 br i1 %cmp2, label %bb2, label %bb3 29 bb2: 30 %x3 = phi i32 [ %x, %bb0 ], [ %x2, %bb1 ] 31 br label %bb3 32 bb3: 33 ret i1 0 34} 35 36define i1 @g(i32 %x, i1 %y) { 37; CHECK-LABEL: @g( 38; CHECK-NEXT: br i1 [[Y:%.*]], label [[BB0:%.*]], label [[BB1:%.*]] 39; CHECK: bb0: 40; CHECK-NEXT: [[CMP:%.*]] = icmp sge i32 [[X:%.*]], 0 41; CHECK: [[X_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X]]) 42; CHECK-NEXT: br i1 [[CMP]], label [[BB3:%.*]], label [[BB2:%.*]] 43; CHECK: bb1: 44; CHECK-NEXT: [[X2:%.*]] = add nuw nsw i32 [[X]], 1 45; CHECK-NEXT: [[CMP2:%.*]] = icmp sge i32 [[X2]], 2 46; CHECK: [[X2_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X2]]) 47; CHECK-NEXT: br i1 [[CMP2]], label [[BB3]], label [[BB2]] 48; CHECK: bb2: 49; CHECK-NEXT: [[X3:%.*]] = phi i32 [ [[X_0]], [[BB0]] ], [ [[X2_0]], [[BB1]] ] 50; CHECK-NEXT: br label [[BB3]] 51; CHECK: bb3: 52; CHECK-NEXT: ret i1 false 53; 54 br i1 %y, label %bb0, label %bb1 55 bb0: 56 %cmp = icmp sge i32 %x, 0 ; x > 0 57 br i1 %cmp, label %bb3, label %bb2 58 bb1: 59 %x2 = add nsw nuw i32 %x, 1 60 %cmp2 = icmp sge i32 %x2, 2 ; x+1 > 2 / x > 1 61 br i1 %cmp2, label %bb3, label %bb2 62 bb2: 63 %x3 = phi i32 [ %x, %bb0 ], [ %x2, %bb1 ] 64 br label %bb3 65 bb3: 66 ret i1 0 67} 68 69