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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 52; RUN: opt < %s -passes=instcombine -S | FileCheck %s3 4target datalayout = "e-m:e-i64:64-n8:16:32:64"5 6; Although i1 is not in the datalayout, we should treat it7; as a legal type because it is a fundamental type in IR.8; This means we should shrink the phi (sink the zexts).9 10define i64 @sink_i1_casts(i1 %cond1, i1 %cond2, i1 %cond) {11; CHECK-LABEL: define i64 @sink_i1_casts(12; CHECK-SAME: i1 [[COND1:%.*]], i1 [[COND2:%.*]], i1 [[COND:%.*]]) {13; CHECK-NEXT: [[ENTRY:.*]]:14; CHECK-NEXT: br i1 [[COND]], label %[[IF:.*]], label %[[END:.*]]15; CHECK: [[IF]]:16; CHECK-NEXT: br label %[[END]]17; CHECK: [[END]]:18; CHECK-NEXT: [[PHI_IN1:%.*]] = phi i1 [ [[COND1]], %[[ENTRY]] ], [ [[COND2]], %[[IF]] ]19; CHECK-NEXT: [[PHI_IN:%.*]] = zext i1 [[PHI_IN1]] to i6420; CHECK-NEXT: ret i64 [[PHI_IN]]21;22entry:23 %z1 = zext i1 %cond1 to i6424 br i1 %cond, label %if, label %end25 26if:27 %z2 = zext i1 %cond2 to i6428 br label %end29 30end:31 %phi = phi i64 [ %z1, %entry ], [ %z2, %if ]32 ret i64 %phi33}34 35