; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -newgvn -S | FileCheck %s ; RUN: opt < %s -newgvn -jump-threading -S | FileCheck --check-prefix=CHECK-JT %s define signext i32 @testBI(i32 signext %v) { ; Test with std::pair ; based on the following C++ code ; std::pair callee(int v) { ; int a = dummy(v); ; if (a) return std::make_pair(true, dummy(a)); ; else return std::make_pair(v < 0, v); ; } ; int func(int v) { ; std::pair rc = callee(v); ; if (rc.first) dummy(0); ; return rc.second; ; } ; CHECK-LABEL: @testBI( ; CHECK: _ZL6calleei.exit: ; CHECK: [[PHIOFOPS:%.*]] = phi i64 [ 1, %if.then.i ], [ {{%.*}}, %if.else.i ] ; CHECK: [[TOBOOL:%.*]] = icmp eq i64 [[PHIOFOPS]], 0 ; ; CHECK-JT-LABEL: @testBI( ; CHECK-JT: _ZL6calleei.exit.thread: ; entry: %call.i = call signext i32 @dummy(i32 signext %v) %tobool.i = icmp eq i32 %call.i, 0 br i1 %tobool.i, label %if.else.i, label %if.then.i if.then.i: ; preds = %entry %call2.i = call signext i32 @dummy(i32 signext %call.i) %retval.sroa.22.0.insert.ext.i.i = zext i32 %call2.i to i64 %retval.sroa.22.0.insert.shift.i.i = shl nuw i64 %retval.sroa.22.0.insert.ext.i.i, 32 %retval.sroa.0.0.insert.insert.i.i = or i64 %retval.sroa.22.0.insert.shift.i.i, 1 br label %_ZL6calleei.exit if.else.i: ; preds = %entry %.lobit.i = lshr i32 %v, 31 %0 = zext i32 %.lobit.i to i64 %retval.sroa.22.0.insert.ext.i8.i = zext i32 %v to i64 %retval.sroa.22.0.insert.shift.i9.i = shl nuw i64 %retval.sroa.22.0.insert.ext.i8.i, 32 %retval.sroa.0.0.insert.insert.i11.i = or i64 %retval.sroa.22.0.insert.shift.i9.i, %0 br label %_ZL6calleei.exit _ZL6calleei.exit: ; preds = %if.then.i, %if.else.i %retval.sroa.0.0.i = phi i64 [ %retval.sroa.0.0.insert.insert.i.i, %if.then.i ], [ %retval.sroa.0.0.insert.insert.i11.i, %if.else.i ] %rc.sroa.43.0.extract.shift = lshr i64 %retval.sroa.0.0.i, 32 %rc.sroa.43.0.extract.trunc = trunc i64 %rc.sroa.43.0.extract.shift to i32 %1 = and i64 %retval.sroa.0.0.i, 1 %tobool = icmp eq i64 %1, 0 br i1 %tobool, label %if.end, label %if.then if.then: ; preds = %_ZL6calleei.exit %call1 = call signext i32 @dummy(i32 signext 0) br label %if.end if.end: ; preds = %_ZL6calleei.exit, %if.then ret i32 %rc.sroa.43.0.extract.trunc } define signext i32 @testIB(i32 signext %v) { ; Test with std::pair ; based on the following C++ code ; std::pair callee(int v) { ; int a = dummy(v); ; if (a) return std::make_pair(dummy(v), true); ; else return std::make_pair(v, v < 0); ; } ; int func(int v) { ; std::pair rc = callee(v); ; if (rc.second) dummy(0); ; return rc.first; ; } ; CHECK-LABEL: @testIB( ; CHECK: _ZL6calleei.exit: ; CHECK: [[PHIOFOPS:%.*]] = phi i64 [ 4294967296, %if.then.i ], [ {{%.*}}, %if.else.i ] ; CHECK: [[TOBOOL:%.*]] = icmp eq i64 [[PHIOFOPS]], 0 ; ; CHECK-JT-LABEL: @testIB( ; CHECK-JT: _ZL6calleei.exit.thread: ; entry: %call.i = call signext i32 @dummy(i32 signext %v) %tobool.i = icmp eq i32 %call.i, 0 br i1 %tobool.i, label %if.else.i, label %if.then.i if.then.i: ; preds = %entry %call1.i = call signext i32 @dummy(i32 signext %v) %retval.sroa.0.0.insert.ext.i.i = zext i32 %call1.i to i64 %retval.sroa.0.0.insert.insert.i.i = or i64 %retval.sroa.0.0.insert.ext.i.i, 4294967296 br label %_ZL6calleei.exit if.else.i: ; preds = %entry %.lobit.i = lshr i32 %v, 31 %0 = zext i32 %.lobit.i to i64 %retval.sroa.2.0.insert.shift.i8.i = shl nuw nsw i64 %0, 32 %retval.sroa.0.0.insert.ext.i9.i = zext i32 %v to i64 %retval.sroa.0.0.insert.insert.i10.i = or i64 %retval.sroa.2.0.insert.shift.i8.i, %retval.sroa.0.0.insert.ext.i9.i br label %_ZL6calleei.exit _ZL6calleei.exit: ; preds = %if.then.i, %if.else.i %retval.sroa.0.0.i = phi i64 [ %retval.sroa.0.0.insert.insert.i.i, %if.then.i ], [ %retval.sroa.0.0.insert.insert.i10.i, %if.else.i ] %rc.sroa.0.0.extract.trunc = trunc i64 %retval.sroa.0.0.i to i32 %1 = and i64 %retval.sroa.0.0.i, 4294967296 %tobool = icmp eq i64 %1, 0 br i1 %tobool, label %if.end, label %if.then if.then: ; preds = %_ZL6calleei.exit %call1 = call signext i32 @dummy(i32 signext 0) br label %if.end if.end: ; preds = %_ZL6calleei.exit, %if.then ret i32 %rc.sroa.0.0.extract.trunc } declare signext i32 @dummy(i32 signext %v)