; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -S -passes=instcombine | FileCheck %s ; Derived from gcc.c-torture/execute/frame-address.c define i32 @func(i8* %c, i8* %f) nounwind uwtable readnone noinline ssp { ; CHECK-LABEL: @func( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[D:%.*]] = alloca i8, align 1 ; CHECK-NEXT: store i8 0, i8* [[D]], align 1 ; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8* [[D]], [[C:%.*]] ; CHECK-NEXT: br i1 [[CMP]], label [[IF_ELSE:%.*]], label [[IF_THEN:%.*]] ; CHECK: if.then: ; CHECK-NEXT: [[CMP2:%.*]] = icmp ule i8* [[D]], [[F:%.*]] ; CHECK-NEXT: [[NOT_CMP1:%.*]] = icmp uge i8* [[C]], [[F]] ; CHECK-NEXT: [[DOTCMP2:%.*]] = and i1 [[CMP2]], [[NOT_CMP1]] ; CHECK-NEXT: br label [[RETURN:%.*]] ; CHECK: if.else: ; CHECK-NEXT: [[CMP5:%.*]] = icmp uge i8* [[D]], [[F]] ; CHECK-NEXT: [[NOT_CMP3:%.*]] = icmp ule i8* [[C]], [[F]] ; CHECK-NEXT: [[DOTCMP5:%.*]] = and i1 [[CMP5]], [[NOT_CMP3]] ; CHECK-NEXT: br label [[RETURN]] ; CHECK: return: ; CHECK-NEXT: [[RETVAL_0_IN:%.*]] = phi i1 [ [[DOTCMP2]], [[IF_THEN]] ], [ [[DOTCMP5]], [[IF_ELSE]] ] ; CHECK-NEXT: [[RETVAL_0:%.*]] = zext i1 [[RETVAL_0_IN]] to i32 ; CHECK-NEXT: ret i32 [[RETVAL_0]] ; entry: %d = alloca i8, align 1 store i8 0, i8* %d, align 1 %cmp = icmp ugt i8* %d, %c br i1 %cmp, label %if.else, label %if.then if.then: ; preds = %entry %cmp2 = icmp ule i8* %d, %f %not.cmp1 = icmp uge i8* %c, %f %.cmp2 = and i1 %cmp2, %not.cmp1 %land.ext = zext i1 %.cmp2 to i32 br label %return if.else: ; preds = %entry %cmp5 = icmp uge i8* %d, %f %not.cmp3 = icmp ule i8* %c, %f %.cmp5 = and i1 %cmp5, %not.cmp3 %land.ext7 = zext i1 %.cmp5 to i32 br label %return return: ; preds = %if.else, %if.then %retval.0 = phi i32 [ %land.ext, %if.then ], [ %land.ext7, %if.else ] ret i32 %retval.0 } define i32 @func_logical(i8* %c, i8* %f) nounwind uwtable readnone noinline ssp { ; CHECK-LABEL: @func_logical( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[D:%.*]] = alloca i8, align 1 ; CHECK-NEXT: store i8 0, i8* [[D]], align 1 ; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8* [[D]], [[C:%.*]] ; CHECK-NEXT: br i1 [[CMP]], label [[IF_ELSE:%.*]], label [[IF_THEN:%.*]] ; CHECK: if.then: ; CHECK-NEXT: [[CMP2:%.*]] = icmp ule i8* [[D]], [[F:%.*]] ; CHECK-NEXT: [[NOT_CMP1:%.*]] = icmp uge i8* [[C]], [[F]] ; CHECK-NEXT: [[DOTCMP2:%.*]] = select i1 [[CMP2]], i1 [[NOT_CMP1]], i1 false ; CHECK-NEXT: br label [[RETURN:%.*]] ; CHECK: if.else: ; CHECK-NEXT: [[CMP5:%.*]] = icmp uge i8* [[D]], [[F]] ; CHECK-NEXT: [[NOT_CMP3:%.*]] = icmp ule i8* [[C]], [[F]] ; CHECK-NEXT: [[DOTCMP5:%.*]] = select i1 [[CMP5]], i1 [[NOT_CMP3]], i1 false ; CHECK-NEXT: br label [[RETURN]] ; CHECK: return: ; CHECK-NEXT: [[RETVAL_0_IN:%.*]] = phi i1 [ [[DOTCMP2]], [[IF_THEN]] ], [ [[DOTCMP5]], [[IF_ELSE]] ] ; CHECK-NEXT: [[RETVAL_0:%.*]] = zext i1 [[RETVAL_0_IN]] to i32 ; CHECK-NEXT: ret i32 [[RETVAL_0]] ; entry: %d = alloca i8, align 1 store i8 0, i8* %d, align 1 %cmp = icmp ugt i8* %d, %c br i1 %cmp, label %if.else, label %if.then if.then: ; preds = %entry %cmp2 = icmp ule i8* %d, %f %not.cmp1 = icmp uge i8* %c, %f %.cmp2 = select i1 %cmp2, i1 %not.cmp1, i1 false %land.ext = zext i1 %.cmp2 to i32 br label %return if.else: ; preds = %entry %cmp5 = icmp uge i8* %d, %f %not.cmp3 = icmp ule i8* %c, %f %.cmp5 = select i1 %cmp5, i1 %not.cmp3, i1 false %land.ext7 = zext i1 %.cmp5 to i32 br label %return return: ; preds = %if.else, %if.then %retval.0 = phi i32 [ %land.ext, %if.then ], [ %land.ext7, %if.else ] ret i32 %retval.0 }