File: pair_jumpthread.ll

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llvm-toolchain-19 1%3A19.1.7-3
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=newgvn -S | FileCheck %s
; RUN: opt < %s -passes=newgvn,jump-threading -S | FileCheck --check-prefix=CHECK-JT %s

; Test with std::pair<bool, int>
; based on the following C++ code
; std::pair<bool, int> 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<bool, int> rc = callee(v);
;   if (rc.first) dummy(0);
;   return rc.second;
; }
define signext i32 @testBI(i32 signext %v) {
; CHECK-LABEL: @testBI(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[CALL_I:%.*]] = call signext i32 @dummy(i32 signext [[V:%.*]])
; CHECK-NEXT:    [[TOBOOL_I:%.*]] = icmp eq i32 [[CALL_I]], 0
; CHECK-NEXT:    br i1 [[TOBOOL_I]], label [[IF_ELSE_I:%.*]], label [[IF_THEN_I:%.*]]
; CHECK:       if.then.i:
; CHECK-NEXT:    [[CALL2_I:%.*]] = call signext i32 @dummy(i32 signext [[CALL_I]])
; CHECK-NEXT:    [[RETVAL_SROA_22_0_INSERT_EXT_I_I:%.*]] = zext i32 [[CALL2_I]] to i64
; CHECK-NEXT:    [[RETVAL_SROA_22_0_INSERT_SHIFT_I_I:%.*]] = shl nuw i64 [[RETVAL_SROA_22_0_INSERT_EXT_I_I]], 32
; CHECK-NEXT:    [[RETVAL_SROA_0_0_INSERT_INSERT_I_I:%.*]] = or i64 [[RETVAL_SROA_22_0_INSERT_SHIFT_I_I]], 1
; CHECK-NEXT:    br label [[_ZL6CALLEEI_EXIT:%.*]]
; CHECK:       if.else.i:
; CHECK-NEXT:    [[DOTLOBIT_I:%.*]] = lshr i32 [[V]], 31
; CHECK-NEXT:    [[TMP0:%.*]] = zext i32 [[DOTLOBIT_I]] to i64
; CHECK-NEXT:    [[RETVAL_SROA_22_0_INSERT_EXT_I8_I:%.*]] = zext i32 [[V]] to i64
; CHECK-NEXT:    [[RETVAL_SROA_22_0_INSERT_SHIFT_I9_I:%.*]] = shl nuw i64 [[RETVAL_SROA_22_0_INSERT_EXT_I8_I]], 32
; CHECK-NEXT:    [[RETVAL_SROA_0_0_INSERT_INSERT_I11_I:%.*]] = or i64 [[RETVAL_SROA_22_0_INSERT_SHIFT_I9_I]], [[TMP0]]
; CHECK-NEXT:    br label [[_ZL6CALLEEI_EXIT]]
; CHECK:       _ZL6calleei.exit:
; CHECK-NEXT:    [[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]] ]
; CHECK-NEXT:    [[RC_SROA_43_0_EXTRACT_SHIFT:%.*]] = lshr i64 [[RETVAL_SROA_0_0_I]], 32
; CHECK-NEXT:    [[RC_SROA_43_0_EXTRACT_TRUNC:%.*]] = trunc i64 [[RC_SROA_43_0_EXTRACT_SHIFT]] to i32
; CHECK-NEXT:    [[TMP1:%.*]] = and i64 [[RETVAL_SROA_0_0_I]], 1
; CHECK-NEXT:    [[TOBOOL:%.*]] = icmp eq i64 [[TMP1]], 0
; CHECK-NEXT:    br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
; CHECK:       if.then:
; CHECK-NEXT:    [[CALL1:%.*]] = call signext i32 @dummy(i32 signext 0)
; CHECK-NEXT:    br label [[IF_END]]
; CHECK:       if.end:
; CHECK-NEXT:    ret i32 [[RC_SROA_43_0_EXTRACT_TRUNC]]
;
; CHECK-JT-LABEL: @testBI(
; CHECK-JT-NEXT:  entry:
; CHECK-JT-NEXT:    [[CALL_I:%.*]] = call signext i32 @dummy(i32 signext [[V:%.*]])
; CHECK-JT-NEXT:    [[TOBOOL_I:%.*]] = icmp eq i32 [[CALL_I]], 0
; CHECK-JT-NEXT:    br i1 [[TOBOOL_I]], label [[IF_ELSE_I:%.*]], label [[IF_THEN_I:%.*]]
; CHECK-JT:       if.then.i:
; CHECK-JT-NEXT:    [[CALL2_I:%.*]] = call signext i32 @dummy(i32 signext [[CALL_I]])
; CHECK-JT-NEXT:    [[RETVAL_SROA_22_0_INSERT_EXT_I_I:%.*]] = zext i32 [[CALL2_I]] to i64
; CHECK-JT-NEXT:    [[RETVAL_SROA_22_0_INSERT_SHIFT_I_I:%.*]] = shl nuw i64 [[RETVAL_SROA_22_0_INSERT_EXT_I_I]], 32
; CHECK-JT-NEXT:    [[RETVAL_SROA_0_0_INSERT_INSERT_I_I:%.*]] = or i64 [[RETVAL_SROA_22_0_INSERT_SHIFT_I_I]], 1
; CHECK-JT-NEXT:    br label [[_ZL6CALLEEI_EXIT:%.*]]
; CHECK-JT:       if.else.i:
; CHECK-JT-NEXT:    [[DOTLOBIT_I:%.*]] = lshr i32 [[V]], 31
; CHECK-JT-NEXT:    [[TMP0:%.*]] = zext i32 [[DOTLOBIT_I]] to i64
; CHECK-JT-NEXT:    [[RETVAL_SROA_22_0_INSERT_EXT_I8_I:%.*]] = zext i32 [[V]] to i64
; CHECK-JT-NEXT:    [[RETVAL_SROA_22_0_INSERT_SHIFT_I9_I:%.*]] = shl nuw i64 [[RETVAL_SROA_22_0_INSERT_EXT_I8_I]], 32
; CHECK-JT-NEXT:    [[RETVAL_SROA_0_0_INSERT_INSERT_I11_I:%.*]] = or i64 [[RETVAL_SROA_22_0_INSERT_SHIFT_I9_I]], [[TMP0]]
; CHECK-JT-NEXT:    br label [[_ZL6CALLEEI_EXIT]]
; CHECK-JT:       _ZL6calleei.exit:
; CHECK-JT-NEXT:    [[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]] ]
; CHECK-JT-NEXT:    [[RC_SROA_43_0_EXTRACT_SHIFT:%.*]] = lshr i64 [[RETVAL_SROA_0_0_I]], 32
; CHECK-JT-NEXT:    [[RC_SROA_43_0_EXTRACT_TRUNC:%.*]] = trunc i64 [[RC_SROA_43_0_EXTRACT_SHIFT]] to i32
; CHECK-JT-NEXT:    [[TMP1:%.*]] = and i64 [[RETVAL_SROA_0_0_I]], 1
; CHECK-JT-NEXT:    [[TOBOOL:%.*]] = icmp eq i64 [[TMP1]], 0
; CHECK-JT-NEXT:    br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
; CHECK-JT:       if.then:
; CHECK-JT-NEXT:    [[CALL1:%.*]] = call signext i32 @dummy(i32 signext 0)
; CHECK-JT-NEXT:    br label [[IF_END]]
; CHECK-JT:       if.end:
; CHECK-JT-NEXT:    ret i32 [[RC_SROA_43_0_EXTRACT_TRUNC]]
;

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
}


; Test with std::pair<int, bool>
; based on the following C++ code
; std::pair<int, bool> 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<int, bool> rc = callee(v);
;   if (rc.second) dummy(0);
;   return rc.first;
; }
define signext i32 @testIB(i32 signext %v) {
; CHECK-LABEL: @testIB(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[CALL_I:%.*]] = call signext i32 @dummy(i32 signext [[V:%.*]])
; CHECK-NEXT:    [[TOBOOL_I:%.*]] = icmp eq i32 [[CALL_I]], 0
; CHECK-NEXT:    br i1 [[TOBOOL_I]], label [[IF_ELSE_I:%.*]], label [[IF_THEN_I:%.*]]
; CHECK:       if.then.i:
; CHECK-NEXT:    [[CALL1_I:%.*]] = call signext i32 @dummy(i32 signext [[V]])
; CHECK-NEXT:    [[RETVAL_SROA_0_0_INSERT_EXT_I_I:%.*]] = zext i32 [[CALL1_I]] to i64
; CHECK-NEXT:    [[RETVAL_SROA_0_0_INSERT_INSERT_I_I:%.*]] = or i64 [[RETVAL_SROA_0_0_INSERT_EXT_I_I]], 4294967296
; CHECK-NEXT:    br label [[_ZL6CALLEEI_EXIT:%.*]]
; CHECK:       if.else.i:
; CHECK-NEXT:    [[DOTLOBIT_I:%.*]] = lshr i32 [[V]], 31
; CHECK-NEXT:    [[TMP0:%.*]] = zext i32 [[DOTLOBIT_I]] to i64
; CHECK-NEXT:    [[RETVAL_SROA_2_0_INSERT_SHIFT_I8_I:%.*]] = shl nuw nsw i64 [[TMP0]], 32
; CHECK-NEXT:    [[RETVAL_SROA_0_0_INSERT_EXT_I9_I:%.*]] = zext i32 [[V]] to i64
; CHECK-NEXT:    [[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]]
; CHECK-NEXT:    br label [[_ZL6CALLEEI_EXIT]]
; CHECK:       _ZL6calleei.exit:
; CHECK-NEXT:    [[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]] ]
; CHECK-NEXT:    [[RC_SROA_0_0_EXTRACT_TRUNC:%.*]] = trunc i64 [[RETVAL_SROA_0_0_I]] to i32
; CHECK-NEXT:    [[TMP1:%.*]] = and i64 [[RETVAL_SROA_0_0_I]], 4294967296
; CHECK-NEXT:    [[TOBOOL:%.*]] = icmp eq i64 [[TMP1]], 0
; CHECK-NEXT:    br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
; CHECK:       if.then:
; CHECK-NEXT:    [[CALL1:%.*]] = call signext i32 @dummy(i32 signext 0)
; CHECK-NEXT:    br label [[IF_END]]
; CHECK:       if.end:
; CHECK-NEXT:    ret i32 [[RC_SROA_0_0_EXTRACT_TRUNC]]
;
; CHECK-JT-LABEL: @testIB(
; CHECK-JT-NEXT:  entry:
; CHECK-JT-NEXT:    [[CALL_I:%.*]] = call signext i32 @dummy(i32 signext [[V:%.*]])
; CHECK-JT-NEXT:    [[TOBOOL_I:%.*]] = icmp eq i32 [[CALL_I]], 0
; CHECK-JT-NEXT:    br i1 [[TOBOOL_I]], label [[IF_ELSE_I:%.*]], label [[IF_THEN_I:%.*]]
; CHECK-JT:       if.then.i:
; CHECK-JT-NEXT:    [[CALL1_I:%.*]] = call signext i32 @dummy(i32 signext [[V]])
; CHECK-JT-NEXT:    [[RETVAL_SROA_0_0_INSERT_EXT_I_I:%.*]] = zext i32 [[CALL1_I]] to i64
; CHECK-JT-NEXT:    [[RETVAL_SROA_0_0_INSERT_INSERT_I_I:%.*]] = or i64 [[RETVAL_SROA_0_0_INSERT_EXT_I_I]], 4294967296
; CHECK-JT-NEXT:    br label [[_ZL6CALLEEI_EXIT:%.*]]
; CHECK-JT:       if.else.i:
; CHECK-JT-NEXT:    [[DOTLOBIT_I:%.*]] = lshr i32 [[V]], 31
; CHECK-JT-NEXT:    [[TMP0:%.*]] = zext i32 [[DOTLOBIT_I]] to i64
; CHECK-JT-NEXT:    [[RETVAL_SROA_2_0_INSERT_SHIFT_I8_I:%.*]] = shl nuw nsw i64 [[TMP0]], 32
; CHECK-JT-NEXT:    [[RETVAL_SROA_0_0_INSERT_EXT_I9_I:%.*]] = zext i32 [[V]] to i64
; CHECK-JT-NEXT:    [[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]]
; CHECK-JT-NEXT:    br label [[_ZL6CALLEEI_EXIT]]
; CHECK-JT:       _ZL6calleei.exit:
; CHECK-JT-NEXT:    [[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]] ]
; CHECK-JT-NEXT:    [[RC_SROA_0_0_EXTRACT_TRUNC:%.*]] = trunc i64 [[RETVAL_SROA_0_0_I]] to i32
; CHECK-JT-NEXT:    [[TMP1:%.*]] = and i64 [[RETVAL_SROA_0_0_I]], 4294967296
; CHECK-JT-NEXT:    [[TOBOOL:%.*]] = icmp eq i64 [[TMP1]], 0
; CHECK-JT-NEXT:    br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
; CHECK-JT:       if.then:
; CHECK-JT-NEXT:    [[CALL1:%.*]] = call signext i32 @dummy(i32 signext 0)
; CHECK-JT-NEXT:    br label [[IF_END]]
; CHECK-JT:       if.end:
; CHECK-JT-NEXT:    ret i32 [[RC_SROA_0_0_EXTRACT_TRUNC]]
;

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)